Question

Which equation can be used to find the measure of angle LKJ? cos−1 = x cos−1 = x sin−1 = x sin−1 = x

Answer 1

D

Explanation:

Answer 2

Answer:

D

Explanation:

We are given that a triangle LKJ

LJ=8.9 cm

KJ=10.9 cm

`\angle LKJ=x`

We have to find the measure of angle LKJ

To find the value of angle LKJ we will use Sin x

`Sin x=(Perpendicular\;side)/(Hypotenuse)`

Substitute the values then we get

`Sin x=(8.9)/(10.9)`

`x=Sin^(-1)((8.9)/(10.9))`

Hence,option D is true.