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Find the missing lengths.

I need help someone

Find the missing lengths. I need help someone-example-1

1 Answer

4 votes

Answer:

Option A

Explanation:

From the triangle given in the picture,

By applying sine rule,

sin(60)° =
\frac{\text{Opposite side}}{\text{Hypotenuse}}


(√(3) )/(2)=(a)/(7)

a =
(7√(3) )/(2)

Similarly, by cosine rule,

cos(60)° =
\frac{\text{Adjacent side}}{\text{Hypotenuse}}


(1)/(2)= (b)/(7)

b =
(7)/(2)

Therefore, Option A will be the correct option.

User LStoilov
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