Question

Find the dimensions of a square that has a
perimeter = 20 cm.​

Answer 1

Step-by-step explanation:

Perimeter=20 cm

$perimeter = 4 {(side)}$

$side = 20 \div 4 = 5$

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Answer 2

ANSWER:-

if you know that the perimeter is 20,

then you have to divide by 4 to get the length of one side

20/4=5.

Draw the diagonal and write in it's length as x.

Use Pythagorean formula

Then know that a2+b2=c2

and use the two side lengths as a and b.

This gives you the equation

52+52=x2.

Do the calculations and solve the equation.

25+25=x2

50=x2

√50=x.

Therefore x=√50 where x equals the length of the diagonal.

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