Question

1. what addition sentence represents the perimeter of a rectangle that is 5 tiles high and 2 tiles wide?

7 + 2 + 5 + 2 = 16
2 + 2 + 5 + 5 = 14
2 + 2 + 5 + 5 = 10
2 + 5 = 7

Explanation:

Step1: Recall the property of a rectangle

A rectangle has two pairs of equal sides.

Step2: Identify the sides

The height is 5 tiles and the width is 2 tiles. So there are two sides of length 5 and two sides of length 2.

Step3: Write the addition sentence for perimeter

The perimeter is the sum of all sides. So the addition sentence is \(2 + 2+5 + 5\).

Step4: Calculate the sum

\(2+2 + 5+5=(2 + 2)+(5 + 5)=4 + 10 = 14\)

Answer:

\(2+2 + 5+5 = 14\) (the second option)