Question

Q1. The perimeter
triangle is 44cm. It side are in the ratio 9:7:6. Find its area.
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Answer 1

Step-by-step explanation:

Let the side be 9x,7x and 6x

A + B + C = 44cm

9x + 7x + 6x = 44cm

22x = 44cm

x = 2cm

A = 18cm

B = 14cm

C = 12cm

s = (a + b + c)/2

s = (18 + 14 + 12)2

s = 22

Area of Triangle = √s(s-a)(s-b)(s-c)

= √22(22-18)(22-14)(22-12)

= √22(4)(8)(10)

= √2×11×2×2×2×2×2×2×5

= 8√55cm²

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Answer 2

Answer:

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