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Himanshu Pandey 4 years, 7 months ago

Hiii

Madhav Kumar 4 years, 7 months ago

Laxmi, math is not magic. So,you need to do more practice for get an appropriate formula for solving any problems. I hope you satisfied from this answer and will do hard work from now. Thanks.

ANSWER

Angle of depression

Posted by Ramakant Gupta 4 years, 7 months ago

CBSE > Class 10 > Mathematics

1 answers

Priyanshu Semwal 4 years, 7 months ago

If a person stands and looks down at an object, the angle of depression is the angle between the horizontal line of sight and the object. Trigonometry can be used to solve problems that use an angle of elevation ordepression

ANSWER

A vertical tower stands on horizontal plane and is surmounted by a flag staff of height 7 M. From a point on the plane the angle of the elevation of the bottom of the flag staff is 30 degree and that of the top of the flag staff is 45 degree. Find the height of the tower?

Posted by Abhijit Kumar 4 years, 7 months ago

CBSE > Class 10 > Mathematics

2 answers

Shaurya Srivastav 4 years, 7 months ago

9.55m

Salil Chandra 4 years, 7 months ago

9.55m.

3Thank You

ANSWER

A wooden toy rocket is in the shape of a cone mounted on a cylinder as shown in figure is the height of the entire rocket is 26 and while the height of the conical part is 6 CM the base of the conical portion has a diameter of 5 cm while the base diameter of the cylindrical portion 37 if the conical persons is to be painted orange and the cylindrical portion siyalo find the area of the rocket painted with each of these colour value 3.14 value of Pi

Posted by Anshika Kumari 4 years, 7 months ago

CBSE > Class 10 > Mathematics

2 answers

Himanshu Goswami 4 years, 7 months ago

Mai batau

Rony Santhosh 4 years, 7 months ago

Height of the cylibder=23.5 TSA of solid = CSA OF CONE +CSA OF CYLINDER (22/7×r×l )+(2×22/7×r×h) I.e,9896.46 Cost =₹ 31074.884 approx.

ANSWER

Cot 72

Posted by Harshit Thapliyal 4 years, 7 months ago

CBSE > Class 10 > Mathematics

1 answers

Good Day 4 years, 7 months ago

Cot 72 = tan(90-72) Cot 72 = tan 18

ANSWER

If tan A

Posted by Harshit Thapliyal 4 years, 7 months ago

CBSE > Class 10 > Mathematics

1 answers

Amisha Verma 4 years, 7 months ago

tan A =sinA/cos A

ANSWER

Prove that (2,-2) ,(-2,1) and(5,2) are the vertices of an right angled triangle .Find the area and hypotenuse

Posted by Saswat Patro 4 years, 7 months ago

CBSE > Class 10 > Mathematics

1 answers

Salil Chandra 4 years, 7 months ago

Proof: By distance formula, AB=(−2−2)2+(1+2)2=16+9=25=5 BC=(−2−5)2+(1−2)2=(−7)2+(−1)2=50=52 Length of the hypotenuse AC=(5−2)2+(2+2)2=(3)2+(4)2=25 ∴AB2+AC2=25+25=50=BC2 ∴ △ ABC is a right-angled triangle Area of the triangle ABC = 21[x1(y2−y3)+x2(y3−y1)+x3(y1−y2)]sq. Area of the △ABC =21×Base×height =21×5×5 =225sq.units.

ANSWER

What is the non metal

Posted by Ravi Kumar 4 years, 7 months ago

CBSE > Class 10 > Mathematics

5 answers

Akansha Khurana 11Th A 4 years, 7 months ago

The substance which is non sonorous, non ductile, non malleable, have low density and have low boiling and melting point called non metal. ???

Himanshu Goswami 4 years, 7 months ago

The substance which gai electron to complete there valency is called non metals

Amisha Verma 4 years, 7 months ago

Those elements valency is negative and not lustrure ,not malleability.,not ductility,

Good Day 4 years, 7 months ago

Those substance which gain electron to complete there valency is called non metals.

Sahil Diwakar 4 years, 7 months ago

Non metal are not malleable

ANSWER

X+13=9

Posted by Santosh Joshi 4 years, 7 months ago

CBSE > Class 10 > Mathematics

5 answers

Amisha Verma 4 years, 7 months ago

x+13 =9.x =9-13=-4

Good Day 4 years, 7 months ago

x+13=9 x=13-9 x=4

Pihu ✨ 4 years, 7 months ago

x + 13=9 x = 9-13 x = -4 answer

Ravi Kumar 4 years, 7 months ago

X+13=9 X=9-13 X=-4

3Thank You

Manvi Jain 4 years, 7 months ago

X+13=9 X=9-13 X=-4

ANSWER

Prove that in two concentric circles, the chord of a circle, which touches the smaller circle,is bisected at the point of contact

Posted by Aryan Kumar 4 years, 7 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

What is lone pair ??

Posted by Piyush Tiwari 4 years, 7 months ago

CBSE > Class 10 > Mathematics

1 answers

Gurveer Singh Gury 4 years, 7 months ago

14.2

ANSWER

Guys koi btayega ki sst ka boards kesa ata h easy or hard or medium..? If i read just only ncert books for sst boards then will i get full marks??

Posted by Kunal Thakur 4 years, 7 months ago

CBSE > Class 10 > Mathematics

4 answers

Rishabh Kumar 4 years, 7 months ago

What is the full form of full form of b y BOI

4Thank You

Ritika Singh 4 years, 7 months ago

Yes...if you have only study ncert book then you got 100% of you hard working....

Malaika Sharma 4 years, 7 months ago

You can take help from Evergreen.Each and every que is given in Evergreen.All the best for board examination.

Bhoomika Verma 4 years, 7 months ago

Hmm..plzz koi batayo..

ANSWER

Which subject that u think this is hard subject and easy subject ??

Posted by Kunal Thakur 4 years, 7 months ago

CBSE > Class 10 > Mathematics

5 answers

Sahil Diwakar 4 years, 7 months ago

Sst

Vivek Rao 4 years, 7 months ago

CBSE class 10th Math

Ritika Singh 4 years, 7 months ago

..All.are easy.. depending on you view

Bhoomika Verma 4 years, 7 months ago

S.st hard h...?

?? ? 4 years, 7 months ago

All are easy ??

ANSWER

Elimination method fraction equation

Posted by Abhi Y 4 years, 7 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

two cubes each of volume 27cm are joined end to end to form a solid . find the surface area of the resulting cubiod

Posted by Mehul Kedia 4 years, 7 months ago

CBSE > Class 10 > Mathematics

2 answers

Vishal K 4 years, 7 months ago

Volume of Cube=a³ 27=a³ a=3. When two cubes are joined, length=6cm, breadth= 3cm , height= 3cm Total surface are of resulting cuboid= 2(lb+bh+lh) =2(6×3+3×3+6×3) =2(18+9+18) =2(45) =90cm² (The surface area of the resulting cuboid is 90cm².)

Vicky Tiwari 4 years, 7 months ago

a³=27cm³ a=√27 a =3cm In the cuboid l=3+3= 6cm b=3cm h =3 cm Curved Surface area=2(l+b)×h =2(6+3)×3 =2×9×3 =54 cm²

ANSWER

Is Ncert enough for Class 10 boards Maths (basic) 2020-21 ?

Posted by Krazy Girl 4 years, 7 months ago

CBSE > Class 10 > Mathematics

4 answers

Karishma Sahu 4 years, 7 months ago

I think you should go through Rd Sharma book also

Priyanka Kumari 4 years, 7 months ago

I think no

Padmanabha Juad 4 years, 7 months ago

Yes

4Thank You

Maheep Thugzz 4 years, 7 months ago

Do sample papers too with ncert

ANSWER

Maths ch2 ex2.3question 3 question chiye h alag digit ke pr method vo he ho jo question 3 ka h

Posted by Kesar Yadav 4 years, 7 months ago

CBSE > Class 10 > Mathematics

1 answers

Kesar Yadav 4 years, 7 months ago

ANSWER

By substituting method solve pair of linear equations . 3x-y=3 And 9x-3y=9

Posted by Shubangi Naik 4 years, 7 months ago

CBSE > Class 10 > Mathematics

2 answers

K Preethi Chowdary 4 years, 7 months ago

3x -y =3 9x -3y= 9 From equation 1 we can write Y =3x-3 Substitute this value in equation 2 9x -3(3x -3)=9 9x -9x +9 = 9 9x -9x =0 9x =9x X = 0 Substitute this value in equation 3 Y = 3(0) -3 Y=-3

Archana Kumari 4 years, 7 months ago

3x-y=3 eq (1) 9x-3y=9 eq( 2)