Question

The width of a computer monitor is 28 cm. If the perimeter is 136 cm, what is the area of the computer monitor?
A. 896cm 2

B. 812 cm2

C.1,020 cm2

D. 1,120 cm2

Answer 1

Answer: D. 1,120 cm2

Step-by-step explanation: Perimeter is the adding of all four sides, so if you take the width and add it with itself, you can then subtract the perimeter with the added width. Now with this new number all you have to do is divide it by two, and now that you have the length you can multiply it with the original width to get the area.

Answer 2

The answer is D. When you have to find area you always multiply so in this case you will do 28cm times 136cm which equals 1,120cm2

Hope this helps !