Question

5. Find JK to the nearest whole number.
A

Answer 1

Sin(x) = Opposite ÷ Hypotenuse

Sin(44) = JK ÷ 90

0.6946583705 = JK ÷ 90

0.6946583705 × 90 = JK

JK = 62.5192533413

Rounding JK to the nearest whole number:

JK = 63

Answer 2

JK ≈ 63 units

Explanation:

Using the sine ratio in the right triangle

sin44° =
`(opposite)/(hypotenuse)` =
`(JK)/(JL)` =
`(JK)/(90)` ( multiply both sides by 90 )

90 × sin44° = JK , that is

JK ≈ 63 ( to the nearest whole number )