Question

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

Answer 1

Answer:

$A=60 cm^{2}$

Step-by-step explanation:

The area of a rectangle is defined as

$A=l \times w$

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

$A=10cm \times 6cm\\A=60 cm^{2}$

Therefore, the right answer is the last choice, $A=60 cm^{2}$

Answer 2

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