Question

wo similar pyramids have base areas of 12.2 cm2 and 16 cm2. The surface area of the larger pyramid is 56 cm2.

What is the surface area of the smaller pyramid?

40.1 cm2
42.7 cm2
52.2 cm2
59.8 cm2

Answer 1

Scale factor for areas = base area ratio. So smaller surface area = 56 × (12.2/16) = 56 × 0.7625 = 42.7 cm².

Answer: 42.7 cm².