Question

Please help me in solving these questions.

1.) The perimeter of a square is 28cm. What is the length of its side?
2.)The area of a rectangle is 32 sq.cm.and its length is 8cm. Find the width.

Answer 1

Answer:

Step-by-step explanation:

Perimeter of square = 4×side

28 = 4×side

side = 28/4 = 7

Area of square = side × side = 7×7 = 49

Area of square = 1/2×(diagonal)²

49 = 1/2×(diagonal)²

Diagonal ² = 49×2 = 98

Diagonal = ✓98 = 9.8cm

Answer 2

Answer:

1) Perimeter of square = 4 × side

Given, perimeter = 28 cm

=> Side = 28 ÷ 4 cm = 7 cm

2) Area of rectangle = length × breadth

Given, area = 32 cm², length = 8 cm

=> Breadth = 32 ÷ 8 cm = 4 cm