SA & V

Question 1

Cube

Answer 1

Curved surface area of a cube formula = 4a2
Total surface area of a cube formula= 6a2
Volume of a cube= a3

Question 2

Cone

Answer 2

Slant Height = l
Curved surface area of a cone formula = πrl
Total surface area of a cone formula = πrl + πr2 = πr(r + l)
Volume of a cone formula = 1/3 x πr2h

Question 3

Cuboid

Answer 3

Curved surface area of a cuboid formula = 2(lh + bh) = 2(l + b)h
Total surface area of a cuboid formula = 2(lb + bh + lh)
Volume of a cuboid formula = l x b x h

Question 4

Cylinder

Answer 4

Curved surface area of a cylinder formula = 2πrh
Total surface area of a cylinder formula = 2πrh + πr2 + πr2 = 2πrh + 2πr2 = 2πr(r + h)
Volume of a cylinder formula = πr2h

Question 5

Hemisphere

Answer 5

Curved surface area of a hemisphere formula = 2πr2
Total surface area of a hemisphere formula = 2πr2 + πr2 = 3πr2
Volume of a hemisphere formula = 2/3 (πr3)

Question 6

Sphere

Answer 6

Total surface area of a sphere formula = 4πr2
Volume of a sphere formula = 4/3 (πr3)