Question

area of is 150cm² and it's sides are in ratio 3:4:5waht is perimeter of triangle
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Answer 1

Answer:

60cm

Step-by-step explanation:

Let the ratio be 3x : 4x : 5x.

Area of triangle = ½ × Base × Height

150 = ½ × 3x × 4x

300 = 12x²

x² = 300 ÷ 12 = 25

x = 5cm

Hence, the sides are 15cm, 20cm and 25cm.

Therefore, perimeter of triangle = (15 + 20 + 25) cm = 60cm