Question

Fill in the blank.

5
3
[ ? ](A) =
=
3
4
A
4
A. sin
B. COS
C. tan

Answer 1

sin A = 3/5

Explanation:

Since this is a right triangle, we can use trig functions

sin theta = opp side/ hypotenuse

sin A = 3/5

Answer 2

A. sin

Explanation:

Hi there!

`\sin\theta=\displaystyle(opposite)/(hypotenuse)`

`\cos\theta=\displaystyle(adjacent)/(hypotenuse)`

`\tan\theta=\displaystyle(opposite)/(adjacent)`

Given the angle A, the opposite side would measure 3 units, the adjacent side would measure 4 units and the hypotenuse would measure 5 units.

If the ratio is
`\displaystyle(3)/(5)`, it means it is a ratio between the opposite side and the hypotenuse. Therefore, it is using the sine ratio.

`\sin A=\displaystyle(3)/(5)`

I hope this helps!