Question

In the given figure,find the legnth of AB and AC.

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Answer 1

Step-by-step explanation:

As per given figure ACB is the right angle triangle and AB=5 and ∠CAB=3x and ∠ABC=2x

In triangle ACB, we have

2x+3x+90=180

⇒5x=180−90

⇒x=18

Then ∠CAB=54 and ∠ABC=36

sin360=5AC

⇒AC=5×sin360

⇒AC=5×0.5581=2.79

Answer 2

Ans. 7 because equilateral triangle