Which equation can be solved to find x, the measure of JK in the diagram below?

Question

asked Jun 17, 2020 62.8k views

2 Answers

Sureone · Answer 1 · 2020-06-21T22:15:16+0000

Answer:

A.
$(1)/(2) (120\degree-x)=48$

Explanation:

By the amgle-chord-secant theorems.

$m\angle L=(1)/(2) (m\overline{MN}-m\overline{JK})$

When we substitute the given measures we obtain:

$48\degree=(1)/(2) (120\degree-x)$

This is the same as the first option.

Therefore the correct answer is A