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    • Posted by Aman Singh 5 years ago

    CBSE > Class 09 > Mathematics
    • 1 answers

    Aninda Debnath 5 years ago

    Pls prefer R.S.Aggarwal book

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    • Posted by Sachin Sharma 5 years ago

    CBSE > Class 09 > Mathematics
    • 1 answers

    Shriya Samaga 5 years ago

    First draw a line segment Make a semi circle on the end point and with the same radius keep the compass on the line where the semi circle intersects......... Draw an arch and pull a line from the end point to the arch Your diagram is ready

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    • Posted by Nidhi Jain 5 years ago

    CBSE > Class 09 > Mathematics
    • 1 answers

    Aryan Kumar 5 years ago

    AB and CD are straight lines intersecting at O. OX the bisector of angles ∠AOC and OY is the OY is the bisector of ∠BOD.   OY is the bisector of ∠BOD. ∴ ∠1 = ∠6  … (1) OX is the bisector of ∠AOC. ∴ ∠3 = ∠4  … (2) ∠2 = ∠5  … (3)  (Vertically opposite angles) We know that, the sum of the angles formed at a point is 360°. ∴ ∠1 + ∠2 + ∠3 + ∠4 + ∠5 + ∠6 = 360° ⇒ ∠1 + ∠2 + ∠3 + ∠3 + ∠2 + ∠1 = 360°  (Using (1), (2) and (3)) ⇒ 2∠1 + 2∠2 + 2∠3 = 360° ⇒ 2(∠1 + ∠2 + ∠3) = 360° ⇒ ∠DOY + ∠AOD + ∠AOX = 180° ⇒ ∠XOY = 180° ∴ The bisectors of pair of vertically opposite angles are on the same straight line.

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    • Posted by Akash Kumar 5 years ago

    CBSE > Class 09 > Mathematics
    • 5 answers

    Uma B 5 years ago

    Origin

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    Smita Sharma 5 years ago

    Diameter which is the longest chord of a circle.

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    Rohit Maurya 5 years ago

    Diameter of circle the bigesst cord of circle called diameter. .....

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    Aman Kumar 5 years ago

    Dimeter

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    Umang Chheda 5 years ago

    Origin

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    • Posted by Md Arashad Kamali 5 years ago

    CBSE > Class 09 > Mathematics
    • 3 answers

    Md Arashad Kamali 5 years ago

    62

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    Rohit Maurya 5 years ago

    61

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    Sia ? 5 years ago

    62                    

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    • Posted by Titu Titu 5 years ago

    CBSE > Class 09 > Mathematics
    • 3 answers

    Kunal Tyagi 5 years ago

    The capacity of doing work is called energy.

    1Thank You

    Nidhi Jain 5 years ago

    It is the capacity to do work

    1Thank You

    Umang Chheda 5 years ago

    Energy is the physical mentally work that we do

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    • Posted by Manas Pratim Talukdar 5 years ago

    CBSE > Class 09 > Mathematics
    • 1 answers

    Aryan Kumar 5 years ago

    Let ABCD be a square. Let the diagonals AC and BD intersect each other at a point O. To prove that the diagonals of a square are equal and bisect each other at right angles, we have to prove AC = BD, OA = OC, OB = OD, and AOB = 90º. In ABC and DCB, AB = DC (Sides of a square are equal to each other) ABC = DCB (All interior angles are of 90) BC = CB (Common side) ABC = DCB (By SAS congruency) AC = DB (By CPCT) Hence, the diagonals of a square are equal in length. In AOB and COD, AOB = COD (Vertically opposite angles) ABO = CDO (Alternate interior angles) AB = CD (Sides of a square are always equal) AOB = COD (By AAS congruence rule) AO = CO and OB = OD (By CPCT) Hence, the diagonals of a square bisect each other. In  AOB and COB, As we had proved that diagonals bisect each other, therefore, AO = CO AB = CB (Sides of a square are equal) BO = BO (Common) AOB = COB (By SSS congruency) AOB = COB (By CPCT) However,AOB + COB = 180 (Linear pair) 2 AOB = 180º AOB = 90º Hence, the diagonals of a square bisect each other at right angles.

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    • Posted by Lahari Yellanki 5 years ago

    CBSE > Class 09 > Mathematics
    • 1 answers

    Aryan Kumar 5 years ago

    parallelogram=opposite sides equal +opposite angles equal Step-by-step explanation: we are given that ab=cd and bc=ad join ac ac=ac in Δabc andΔcda we have ab=cd bc=ad ac=ac Δabc ≅Δcda ⇒∠a=∠c  ∠b=∠d hence proved Read more on Brainly.in - https://brainly.in/question/8401070#readmore

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    • Posted by Sm Nandu 5 years ago

    CBSE > Class 09 > Mathematics
    • 1 answers

    Anushka Chaudhary 5 years ago

    Option c

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    • Posted by Kalwa Sushmitha 5 years ago

    CBSE > Class 09 > Mathematics
    • 1 answers

    Md Anowar Haque 5 years ago

    Option d

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    • Posted by Karan Arora 5 years ago

    CBSE > Class 09 > Mathematics
    • 1 answers

    Aryan Kumar 5 years ago

    Vertex B of ABC is located outside the circle with centre O. Side AB intersects chord CE at point E and side BC intersects chord AD at point D with the circle. We have to prove that ABC = [AOC – DOE] Join OA, OC, OE and OD. Now AOC = 2AEC [Angle subtended by an arc at the centre of the circle is twice the angle subtended by the same arc at any point in the alternate segment of the circle] AOC = AEC …(i) Similarly DOE = DCE ….(ii) Subtracting eq. (ii) from eq. (i), [AOC – DOE] = AEC – DCE ….(iii) Now AEC = ADC [Angles in same segment in circle] ….(iv) Also DCE = DAE [Angles in same segment in circle] ….(v) Using eq. (iv) and (v) in eq. (iii), [AOC – DOE] = DAE + ABD – DAE [AOC – DOE] = ABD Or [AOC – DOE] = ABC Hence proved.

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    • Posted by Manoj Kumar 5 years ago

    CBSE > Class 09 > Mathematics
    • 0 answers
    ANSWER

    • Posted by Yalamalli Sivakumar 5 years ago

    CBSE > Class 09 > Mathematics
    • 0 answers
    ANSWER

    • Posted by Avinash Jiddimani 5 years ago

    CBSE > Class 09 > Mathematics
    • 2 answers

    Tanisha Chhikara 5 years ago

    Two terms

    0Thank You

    Rohit Maurya 5 years ago

    Which have two variable

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    • Posted by Ritik Singh 5 years ago

    CBSE > Class 09 > Mathematics
    • 1 answers

    Rohit Maurya 5 years ago

    ^

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    • Posted by Aryan Kumar 5 years ago

    CBSE > Class 09 > Mathematics
    • 1 answers

    Rohit Maurya 5 years ago

    .a(16a3-5)

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    • Posted by Aryan Kumar 5 years ago

    CBSE > Class 09 > Mathematics
    • 1 answers

    Rohit Maurya 5 years ago

    =1/5

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    • Posted by Aryan Kumar 5 years ago

    CBSE > Class 09 > Mathematics
    • 1 answers

    Ã.P.W.B.Đ ⚡ 5 years ago

    Lateral surface area of cone=pi×r×l =pi ×r×1 =pi×r.

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    • Posted by Aryan Kumar 5 years ago

    CBSE > Class 09 > Mathematics
    • 2 answers

    Rohit Maurya 5 years ago

    Sorry up is wrong. ... New ans is =22/7×31 (31+31)= 6035.08 ......

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    Rohit Maurya 5 years ago

    Total surface area= 4/3×31(31+31) =6035.08.....

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    • Posted by Aryan Kumar 5 years ago

    CBSE > Class 09 > Mathematics
    • 1 answers

    Rohit Maurya 5 years ago

    Ratio of volum = 4/3×22/7×2r :4/3×22/7×r =2:1.....

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    • Posted by Aryan Kumar 5 years ago

    CBSE > Class 09 > Mathematics
    • 1 answers

    Rohit Maurya 5 years ago

    Ratio of these volume = ||r×r×h:||r×r×h =22/7×3×3×4:22/7×4×4×3= 3:4

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    • Posted by Aryan Kumar 5 years ago

    CBSE > Class 09 > Mathematics
    • 1 answers

    Aryan Kumar 5 years ago

    Brainly.in What is your question? Secondary School Math 5 points A hemispherical tank is emptied by a pipe at the rate of 5 litres per minute how long will it take to half empty the tank if it is meter in diameter Ask for details Follow Report by Ankitkarn1177 02.01.2018 ankitkarn1177 what answer Log in to add a comment Answers Me · Beginner Know the answer? Add it here! santy2 santy2 Ace We first get the volume of the hemisphere. Formulae =2/3 pie r3 The radius =1/2m=0.5m Volume=2/3 × 0.5×0.5×0.5×3.142=0.2618m3 Convert to litres: 1 cubic meter=1000 litres 1000×0.2618=261.8litres It will be emptied to half:261.8/2=130.9m3 Rate:5litres per minute. Time taken =130.9/5=26.18minutes 26.18 minutes.

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    • Posted by Adithya Vardhan 5 years ago

    CBSE > Class 09 > Mathematics
    • 1 answers

    Rohit Maurya 5 years ago

    Here, Am=1/2ac (:.m is mid point) Abm~= mbc (why) Mc=am (:.above prove ) Mb=mb (common ) \abm=\mba (:.mis the midpoint and busector of \abc) =by (sas) Then, \abm=\mcb ( by c.p.c.t ) So, Mb=mc& mb=am (:.am=bm) So, Am=bm=1/2ac...........

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    • Posted by Pramud Kakati 5 years ago

    CBSE > Class 09 > Mathematics
    • 0 answers
    ANSWER

    • Posted by Ashu Mahto 5 years ago

    CBSE > Class 09 > Mathematics
    • 1 answers

    Pramud Kakati 5 years ago

    1.0656666E13

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    • Posted by Zaheen Reyaz 5 years ago

    CBSE > Class 09 > Mathematics
    • 0 answers
    ANSWER

    • Posted by Rohan Sirohi 5 years ago

    CBSE > Class 09 > Mathematics
    • 2 answers

    Neha Verma 5 years ago

    First correct urr.. question

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    Neha Verma 5 years ago

    22

    1Thank You

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    • Posted by Aryan Kumar 5 years ago

    CBSE > Class 09 > Mathematics
    • 1 answers

    Murari Sah 5 years ago

    Given side of solid cube = 12cm Volume of big cube = A^3 = (12)^3= 1728cm^3. The cube cut into eight eqaul volume cubes. Volume of 8 cubes=1728cm^3 Volume of 1small cube=1728/8=216cm^3 Now, volume of small cube=(a)^3=216 a=6cm. Surface area of big cube (S1)=6A^2=6x12^2=864cm^2. Now surface area of small cube (S2)=6a^2=6x6^2=216cm^2. Now S1/S2=864/216=4/1=4:1

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    • Posted by Rajvi Kantaria 5 years ago

    CBSE > Class 09 > Mathematics
    • 1 answers

    Satyam King 5 years ago

    4root6+ 3root6 + 12root10-8root10 4+3root6+12-8root10 7root6+4root10

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    • Posted by Sidharth Nakose 5 years ago

    CBSE > Class 09 > Mathematics
    • 1 answers

    Sachin Sharma 5 years ago

    Please check your answer

    0Thank You

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