Question

4. Find the volume and surface area of thefollowing composite figures.

Answer 1

Volume of the rectangular prism = length x width x height

= 10 x 10 x 7

= 700 cm^3

Volume of a quadrangular pyramid = 1/3 (Ab x h)

Ab = 10 x 10

= 100 cm^2

= 1/3(100 x 11)

= 366.67 cm^3

Total volume = 700 + 366.67

= 1066.67 cm^3