Question

If the perimeter of a square is 30 cm more than its side, then what is the side of the square?​

• A. 12 cm
• B. 7.5 cm
• C. 6 cm
• D. 10 cm

Answer 1

The correct option is D 10 cm

Perimeter of square = 4(Side of square)
Given : Perimeter = 30 + Side of square
4(Side of square) = 30 + Side of square
(4-1)Side of square = 30
Side of square = $\frac{30}{3}=10cm$

Therefore, the side of the square is 10 cm.