Practice · Surface Area & Volume of Composite Solids — L1 Surface area of right composite 3-D shapes (decompose and add)

Question 1 of 10 · 0 correct so far
Difficulty: Medium
Short answer

A step block: bottom prism 8 cm long x 4 cm deep x 3 cm high; top prism 5 cm long x 4 cm deep x 2 cm high, sitting on top at one end, flush on that end and front-to-back. Find the surface area. (Use pi = 3.14 wherever a circle appears.)

Fractions like 1 1/2, 9/6 and 3/2 are all accepted where they're equal.

Hints unlock after your first attempt — pick or type an answer to start the ladder.