Question

11. Two similar solids are shown below.

A
Solid A has a height of 5 cm.
Solid B has a height of 7 cm.
5 cm
12
B
Diagrams not drawn to scale
7 cm
Mari claims that the surface area of solid B is more than double the surface area of solid A.
Is Mari correct?
You must justify your answer.
(2)
N

Answer 1

Explanation:

A) Two similar solids have a scale factor of 3:5. If the height of solid I is 3 cm, find the height of solid II (B) If the surface area of 1 is 54π cm, fine