Question

In the triangle ABC,angle b=90° ac=5cm,sinc=4\5,what is the lengrh of AB,find cos c?

Answer 1

The answer of cos c is 3/5

Answer 2

In the triangle, ABC, angle b=90° ac=5cm,sinc=4\5,4 is the length of AB.

Step-by-step explanation:

In ΔABC,

∠B = $90^0$ (Given )

AC = 5 cm ( Given )

Sib C = 4/5 (given )

AB =?

Now,

Sin C = AB/AC

4/5 = AB/5

AB = 4 cm .

Hence, the answer is 4 cm.

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