A triangular piece of land has sides that are in the ratio of 3:5:7, with a total perimeter of 300 meters. What are the sides of this land?
Show answer & explanation
Correct answer: A
Explanation
Has been given :
Ratio of sides = 3 : 5 : 7
Perimeter = 300 meters
According to the formula:
Sides = 3x, 5x, 7x
Perimeter = 3x + 5x + 7x
3x + 5x + 7x = 300
15x = 300
x = 20
sides
= 3x = 3 × 20 = 60 meters
= 5x = 5 × 20 = 100 meters
= 7x = 7 × 20 = 140 meters
Sides = 60 m, 100 m, 140 m