Correct Answer - Option 1 : 60
Given:
Area of rectangle is 96 square meter more than the area of triangle
Length of Rectangle = 18 m
Height of Triangle = 20 m
Base of Triangle = Breadth of rectangle
Formula used:
Area of Rectangle = Length × Breadth
Area of Triangle = 1/2 × Base × Height
Calculation:
According to question
Length × Breadth = 1/2 × Base × Height + 96
⇒ 18 × B = 1/2 × B × 20 + 96
⇒ 18B = 10B + 96
⇒ 8B = 96
⇒ B = 12
Now, Perimeter of rectangle = 2(18 + 12)
⇒ 2 × 30 = 60 m
∴ Perimeter of rectangle is 60