Question

all formulas of surface area and volume class 10th board plźz answer fast
today is my Paper 6 December

Answer 1

CUBOID:-

(1) VOLUME OF CUBOID = L×B×H

(2) CSA OF CUBOID= 2(L+B)×H

(3) TSA OF CUBOID= 2(LB+BH+LH)

CUBE:-

(1) VOLUME OF CUBE = A³

(2) CSA OF CUBE= 4A²

(3) TSA OF CUBE = 6A²

CYLINDER:-

(1) VOLUME OF CYLINDER= πR²H

(2) CSA OF CYLINDER= 2πRH

(3) TSA OF CYLINDER= 2πR(H+R)

CONE:-

(1) VOLUME OF CONE = 1/3πR2H

(2) CSA OF CONE = πRL

(3) TSA OF CONE = πRL +πR² = πR(L+R)

SPHERE:-

(1) VOLUME OF SPHERE = 4/3πR³

(2) TSA OF SPHERE = 6A²

HEMISPHERE :-

(1) VOLUME OF HEMISPHERE = 2/3πR³

(2) CSA OF HEMISPHERE = 2A²

(3) TSA OF HEMISPHERE = 3A².

FRUSTUM OF CONE:-

(1) VOLUME = R²+r²+ Rr

(2) CSA = πL(R+r)²

HOPE IT WILL HELP YOU.

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Answer 2

cube.1.lateral surface area=4a