3 years ago

QUICK!!!

Mathematics

1 answer:

Tpy6a [65]3 years ago

6 0

Answer:

she end

Step-by-step explanation:

bansnd

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Solution:-

Let us assume E is the altitude drawn from D to AB.

Given that m∠ACB=120° and ABC is isosceles which means

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Let AC=BC=x

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Since DCB is a straight line m∠ACD+m∠ACB =180

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Hence $cos(60)=\frac{4}{x}$

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