A rectangle has 15 cm as its length and 150 cm2 as its area. Its area is increased to 1 1/3 times the original area by increasing only its length its new perimeter is:_________?
Q1. A rectangle has 15 cm as its length and 150 cm2 as its area. Its area is increased to 1 1/3 times the original area by increasing only its length its new perimeter is:_________?
Answer: 60 cm
Explanation: Original area = 150 cm²; new area = 150 × 4/3 = 200 cm²; new length = 200/10 = 20 cm; perimeter = 2(20 + 10) = 60 cm.