Question

Select all the expressions that correctly calculate the perimeter of the shape. 4020 80 + 20 0 120+200 300+ 1007 10 - 10 + 10 + 10 + 10 - 10

Answer 1

The perimeter of the shape is:

`10+10+10+10+20\pi`

This comes from the fact that we have four sides of lenght 10 and one full circle (remember that the perimeter of the circle is pi*D).

Therefore, the expression that correctly calculate the perimeter are:

`40+20\pi`

and

`10+10+10\pi+10+10+10\pi`