Question

The following octagon is formed by removing four congruent triangles from a rectangle. What is the area of the rectangle?

Answer 1

Area= length times width. 10×6 is 60. Answer is 60 cm^2

Answer 2

`A=60 cm^(2)`

Explanation:

The area of a rectangle is defined as

`A=l * w`

Where
`l` is the length and
`w` is the width.

If you observe the given graph, you will find that the dimensions are

`l=2+6+2=10cm`

`w=2+2+2=6cm`

So, replacing these dimensions we have

`A=10cm * 6cm\\A=60 cm^(2)`

Therefore, the right answer is the last choice,
`A=60 cm^(2)`