Question

I need help finding the side AB NOT THE ANGE AB which is 90°

Answer 1

AB = 10.83 cm

Explanation:

From ΔABC,

m∠B = 90°

By applying sine rule in the given triangle,

sinθ =
`\frac{\text{Opposite side}}{\text{Hypotenuse}}`

sin(37°) =
`(AB)/(AC)`

AB = AC(sin37°)

AB = 18×(0.060182)

= 10.833

≈ 10.83 cm

Therefore, AB = 10.83 cm is the answer.