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In a circle of radius 5cm AB and AC are 2 chords such that AB=AC=6cm find the length of the chord BC

Posted by Its Deep 3 years, 11 months ago

CBSE > Class 09 > Mathematics

2 answers

Khushi Agrawal 3 years, 11 months ago

Question Bookmark In a circle of radius 5 cm , AB and AC are two chords such that AB = AC = 6 cm . Find the length of the chord BC . Easy Solution verified Verified by Toppr AB and AC are two equal chord of a circle, therefore the centre of the circle lies on the bisector of ∠BAC. OA is the bisector of ∠BAC. Again, the internal bisector of an angle divides the opposite sides in the ratio of the sides containing the angle. P divides BC in the ratio 6:6=1:1. P is mid-point of BC. OP ⊥ BC. In △ ABP, by pythagoras theorem, AB 2 =AP 2 +BP 2 BP 2 =36−AP 2 ....(1) In △ OBP, we have OB 2 =OP 2 +BP 2 5 2 =(5−AP) 2 +BP 2 BP 2 =25−(5−AP) 2 .....(2) From 1 & 2, we get, 36−AP 2 =25−(5−AP) 2 36=10AP AP=3.6cm Substitute in equation 1, BP 2 =36−(3.6) 2 =23.04 BP=4.8cm BC=2×4.8=9.6cm

Its Deep 3 years, 11 months ago

9.8cm

ANSWER

A circle of 30cm diameter has a 24cm chord what is the distance of the chord from the center

Posted by Kavitha Raghavendra 3 years, 11 months ago

CBSE > Class 09 > Mathematics

2 answers

Priyanshu Soni 3 years, 11 months ago

Good question

Garima Chaudhary 3 years, 11 months ago

9

ANSWER

Define chord and diameter

Posted by Kenchappa. G Kenchappa. G 3 years, 11 months ago

CBSE > Class 09 > Mathematics

1 answers

Renu T 3 years, 11 months ago

The line segment of the circle is chord The chord, which passes through the centre of the chord is the diameter

ANSWER

Q1. The total surface area of a cube is 726 cm2. Find the length of its edge.

Posted by Yash Chaudhari 3 years, 11 months ago

CBSE > Class 09 > Mathematics

3 answers

Abhi Bhardwaj 3 years, 11 months ago

11

Ayush Kumar 3 years, 11 months ago

11 cm

Yash Yadav 3 years, 11 months ago

11 cm

ANSWER

Factorise x3+1/x3-z

Posted by Devansh Dwivedi 3 years, 11 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

If a+b = 2and ab= a²+b²what is the value of a²+b²

Posted by Arpit Bhardwaj 3 years, 11 months ago

CBSE > Class 09 > Mathematics

1 answers

Mohini Pal 3 years, 11 months ago

A2+b2+2ab

ANSWER

X+2-2(a+b)

Posted by Arsh Mia 3 years, 11 months ago

CBSE > Class 09 > Mathematics

1 answers

Arpit Bhardwaj 3 years, 11 months ago

X+2-2a+2b

ANSWER

Finally tests are over !

Posted by K_Hushii 🍁 3 years, 11 months ago

CBSE > Class 09 > Mathematics

4 answers

Sanket .........✨ 3 years, 11 months ago

Same yr 10 - 15 din baad final ! Aur abhi chl rhe h test

Xoxo .. 3 years, 11 months ago

So tumne mujhe aur sanket ko jo maths science ke questions diye vo konse hai?

K_Hushii 🍁 3 years, 11 months ago

All but ab final start hone wale h 15- 20 din baad ?

Xoxo .. 3 years, 11 months ago

Which subject

ANSWER

The angels of quadrilateral are in the ratio 3:5:9:13. Find all the angles of the quadrilateral

Posted by Ayodhyaprasadkesharwani Kesharwani 3 years, 11 months ago

CBSE > Class 09 > Mathematics

2 answers

K_Hushii 🍁 3 years, 11 months ago

Sry 3x+5x+9x+13x =360

K_Hushii 🍁 3 years, 11 months ago

Let the angle be x, 3x+5x+9x+13x = 180, 30x =360, x= 360/30= 12, 3×12= 36, 5×12=60, 9×12 =108, 13×12 =156

ANSWER

✓8476

Posted by Harrsa Harris 3 years, 11 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

Q-1 prove that a diagonal of a parallelogram divides it into two congruent triangles. Q-2 how many sq metres of canvas is required for a conical tent whose height us 3.5m and the radius of whose base is 12m. Q-3 find the (i) CSA and (ii) TSA if the hemisphere of radius 21cm. Q-4 if two parallelogram PQAD and PQBC are on the opposite sides of PQ, prove that ABCD is a parallelogram. Q-5 the outer CSA of hemisphere and sphere are in the ratio 2:9. Find the ratio of their radii. Q-6 four students of your class of different faith hindu, muslim, sikh, and christian bond a human chain like a quadrilateral of sides 12cm, 5cm, 12cm, 5cm and angle between the sides 12cm and 5cm is 90°.(i) name the type of quadrilateral. (ii) what assumption will be arrived from this activity? Q-7 an aquarium in a DDA park is of hemispherical structure, and the radius is 2.1km (i) calculate the TSA .(ii) what ideas are being promoted here? Q-8 a class room is 7m long, 6.5m wide and 4m high. It has one door 3m×1.4m and three windows each measuring 2m×1m. The interior walls are to be colour washed. The contractor charges ₹5.25per m^2. Find the cost of colour washing. ( lo sanket maths ke question I hope practice ke liye inte bhaut h )

Posted by K_Hushii 🍁 3 years, 11 months ago

CBSE > Class 09 > Mathematics

5 answers

K_Hushii 🍁 3 years, 11 months ago

okkk

Xoxo .. 3 years, 11 months ago

Yes I want of science.. please

Xoxo .. 3 years, 11 months ago

Khushi please help me with 2nd term questions of 3 mark and 4 mark of science from 2nd term question paper for practice.. please friend..

Xoxo .. 3 years, 11 months ago

Yes science ke bhi 2nd term ke questions send Karo please

K_Hushii 🍁 3 years, 11 months ago

Science ke bhi chahiye ?

ANSWER

Zero of the polynomial p x is equal to a z plus b minus c coma z is not equal to zero is option a c minus b upon main option b a minus b upon a option c a minus b upon a option d b minus b minus a upon AC

Posted by Sanjana Choudhary Choudhary 3 years, 11 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

X⁴-2x³+3x²-ax+b (x+1) and ( x-1) are factors

Posted by K A 3 years, 11 months ago

CBSE > Class 09 > Mathematics

1 answers

Ayush Kumar 3 years, 11 months ago

(x+1)

ANSWER

Chapter 8 theorem 8.2 and 8.3

Posted by Khushboo Mulchandani 3 years, 11 months ago

CBSE > Class 09 > Mathematics

2 answers

Khushboo Mulchandani 3 years, 11 months ago

What is this pls anyone give me answer as fast as you can

Mannatdeep Kaur Marwaha 3 years, 11 months ago

J

ANSWER

Find the value of a25_a15 for the Ap:6,9,12,15.......

Posted by Salma Gulabsha 3 years, 11 months ago

CBSE > Class 09 > Mathematics

1 answers

Salma Gulabsha 3 years, 11 months ago

Class 10

ANSWER

Draw a line segment of 6.4 cm and divide it into the four equal parts

Posted by Shashwat Yadav 3 years, 11 months ago

CBSE > Class 09 > Mathematics

1 answers

Humaira Ayub 3 years, 11 months ago

First you will draw a line measuring 6.4cm then draw a perpendicular on it, the perpendicular will devide it into two equal parts. Now, take the one part again draw a perpendicular on it do the same thing on another part of the line. Hence the line will devide into two equal parts.

ANSWER

Is anything exempted from ch 2 class 9

Posted by Parth Agarwal 3 years, 11 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

If the diagnols of a parallelogram are equal,then show that it Is a rectangle

Posted by Ravneet Kaur 3 years, 11 months ago

CBSE > Class 09 > Mathematics

1 answers

K_Hushii 🍁 3 years, 11 months ago

Given ABCD is a //gm and AC = BD , to prove ABCD is a rectangle, proof in ∆ABD &∆ BCD (by sss) then B+C = 180, 2B = 180, B= 180/2 = 90, A=D =90

ANSWER

What is T.S.A

Posted by Mohd Zamin 3 years, 11 months ago

CBSE > Class 09 > Mathematics

5 answers

❖Mʀ᭄ ℟ᴜđʀ₳★ᶠᶠ 3 years, 11 months ago

Total surface area

Prince Kumar 3 years, 11 months ago

2(lb +bh +hl)

Praveen Kambar 3 years, 11 months ago

Total Surface Area

Muskan Rai 3 years, 11 months ago

The sum of the area of all external surfaces of the three - dimensional object is called its total surface area (TSA)

Mohd Zamin 3 years, 11 months ago

T.S.A is the Total surface area

ANSWER

The cylindrical tube of 16 cm contains water to a depth spherical iron ball is dropped in to a tube and these level of the water ralsed by 9 CM of the ball

Posted by Samarth Jadhav 3 years, 11 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

hareesh and

Posted by Rinki Rinki 3 years, 11 months ago

CBSE > Class 09 > Mathematics

1 answers

Sanchari Debnath 3 years, 11 months ago

Correct your question

ANSWER

Prove that the figure formed by joining the mid point of the pair of adjacent sides of parrellogram is a parrellogram

Posted by Tanveer Kaur 3 years, 11 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

239 multiply 45

Posted by Deepika Upadhyay 3 years, 11 months ago

CBSE > Class 09 > Mathematics

3 answers

Sanchari Debnath 3 years, 11 months ago

10755

Divyraj Singh 3 years, 11 months ago

20÷54

Aditya Kumar 3 years, 11 months ago

10755

ANSWER

x3+3x3+3x2x+1

Posted by Laxmi Pandey 3 years, 11 months ago

CBSE > Class 09 > Mathematics

1 answers

Divyraj Singh 3 years, 11 months ago

×3+3×3+3×2×+1

ANSWER

Polynomial value

Posted by Ashmeet Kaur 3 years, 11 months ago

CBSE > Class 09 > Mathematics

1 answers

Ansh Sharma 3 years, 11 months ago

Qftuu do de vhijsho

ANSWER

The value of 251squre -250squre

Posted by Chanchal Rathor 3 years, 11 months ago

CBSE > Class 09 > Mathematics

2 answers

Sanchari Debnath 3 years, 11 months ago

251square - 250square 63001 - 62500 501 .

K_Hushii 🍁 3 years, 11 months ago

251^2 = 63001 , 250^2= 62500 , 251^2-250^2 , 63001-62500 = 501 ans

ANSWER

In figure, PQR = where P, Q, R are points on a circle with centre O. Find OPR.

Posted by Shanies Chacko Konuparamban 3 years, 11 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

The side of traingle are 8cm, 15cm and 17cm find perimeter and area also find length of altitude drawn on side with length 17 cm

Posted by Mohd Rehan 3 years, 11 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

Factorize: x³ - 8y³+ 27z³+ 18xyz

Posted by Savalaram Suthar 3 years, 11 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

a^3-(1/a^3)-2a-(2/a)

Posted by Minecraft Gaming 3 years, 11 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

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