11.10 Similarity in solid figures
Interactive practice questions
Consider the rectangular prisms A and B shown.
Find the surface area of Rectangular Prism A.
Find the surface area of Rectangular Prism B.
What is the ratio of the surface area of Rectangular Prism A to Rectangular Prism B?
Is it true that if the matching sides of two similar figures are in the ratio $m$m:$3$3, then their surface areas are in the ratio $m^2$m2:$3^2$32?
True
False
Two similar cones have matching heights and radii whose lengths are in the ratio $7$7:$2$2. Find the ratio of their surface areas.
Two similar pyramids have matching sides in the ratio $2$2:$5$5. If the surface area of the larger pyramid is $250$250 cm2, find the surface area of the smaller pyramid.
Consider the two similar spheres shown. The smaller sphere has radius $3$3 cm while the larger sphere has a radius of $12$12 cm.