Question

what is the area of a square with sides 17 meters long?
a 289 m
b 34 square m
c 68 m
d 289 square m

Explanation:

Step1: Recall the formula for the area of a square

The area formula of a square is \(A = s^2\), where \(s\) is the side - length of the square.

Step2: Substitute the given side - length into the formula

Given \(s = 17\) meters. Then \(A=17\times17\).
Using the multiplication \(17\times17=(10 + 7)\times(10 + 7)=10\times10+2\times10\times7 + 7\times7=100+140 + 49=289\).
The unit of area is square meters (\(m^{2}\)).

Answer:

D. \(289\) square \(m\)