Question

The sides of a triangle are in the ratio 3:5:7 and
its perimeter are 45 cm. What is the length of the
sides?
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Answer 1

Step-by-step explanation:

• Let the sides of the triangles be 3x,5x and 7x .
• Given that, perimeter of triangle = 45 cm
• 3x + 5x + 7x = 45
• 15x = 45
• x = 45/15 = 3
• So, the sides of triangle are 3x = 3*3 = 9cm,5x = 5*3 = 15cm, 7x = 7*3 = 21cm