The perimeter of a square is 40 cm, find the area of this square.
| January 8, 2021 | education
Given:
P square = 40 cm
Find: a -?
S square -? cm2
Decision:
In order to find the side of the square, we derive the formula. From the formula for finding P square.
We get:
P square = a * 4
from here
a = P: 4
a = 40: 4
a = 10 cm
S square = a * a
S square = 10cm * 10cm
S square = 100 cm2
Answer: S square = 10 square centimeters.
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