Question

Find the length of b to the nearest tenth. (Picture included)

Answer 1

This is a right triangle, so you can use the trig ratios (sine, cosine, tangent). Are you familiar with them?

Answer 2

Yes. I'm not sure which one to use though.

Answer 3

Since we know of the hypotenuse and we want to know of the opposite side we would use the trig ratio; sin.....

\(\huge{\sin(x)=\frac{opposite}{hypotenuse}\rightarrow \sin(60)=\frac{b}{2}}\)

Since the known number is in the denominator we would multiply it by sin...

\(\Huge{2 \times \sin(60)=x}\)

Answer 4

So 2*0.86=1.72,Is this correct?

Answer 5

That would be correct ^^

Answer 6

And to the tenth is it 1.7?

Answer 7

Correct ^^