Perimeter of square is 36 cm find the length of its diagonal
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Answer:12.6 cm
Step-by-step explanation:
Perimeter = 36 cm.
Since all 4 sides of a triangle are equal.
Side = perimeter/4
= 36/4
=9 cm.
Draw a diagonal AC.
So triangle ABC is a right angled triangle
In triangle ABC by Pythagoras theorem
(AC)^2 = (AB)^2 + (BC)^2
= 9^2 + 9^2
= 81 + 81
(AC)^2 = 162
AC = 12.6 cm.
Hope it helps!
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