Question

class ninth math ,,, chapter 12,,, exercise 12.1 ,,, questions no 6


solve only question no (6)


give me relevant answer
irrelevant will be reported by user .​

Answer 1

Answer:

Let the sides of an isosceles triangle be

a = 12cm, b = 12cm,c = x cm

Since, perimeter of the triangle = 30 cm

∴ 12cm + 12cm + x cm = 30 cm

⇒ x = (30 – 24) = 6

Now, semi-perimeter, s = 302cm =15 cm

the required area of the triangle = 9√15 cm2

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Answer 2

Answer:

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