Question

What are the lengths of a right triangle in which one acute angle measures 19 degrees and the hypotnuse is 15 units long

Answer 1

For plato users the correct option is D.

Explanation:

D. 4.9 units, 14.2 units

Answer 2

4.884 units, 14.183 units

Explanation:

The mnemonic SOH CAH TOA reminds you of the relationships between sides and hypotenuse:

... Sin = Opposite/Hypotenuse

... Cos = Adjacent/Hypotenuse

Then the Opposite and Adjacent sides can be found by multiplying the sine and cosine of the angle by the length of the hypotenuse.

... short side = 15 · sin(19°) ≈ 4.884 units

... long side = 15 · cos(19°) ≈ 14.183 units