Question

2. A contractor is building a set of stairs out of concrete. Each stair is exactly the same length, width, and height.

(a) Which solid figures can the stairs be broken into? What are the dimensions of each solid figure?

(b) How much concrete will be needed to form the stairs?

Answer 1

D. The solid figure can be broken into rectangles, it’s dimensions would be 24mx0.4m

E. To find how much concrete is needed you have to...

multiply LxWxH

So multiply 1.8x1.2x2.4=5.184

Then divide 1.8 by 3= 0.6

Each small rectangle is 0.6 m in height

5.184-1.8=3.384

Explanation: