2 Answers

Gilbou · Answer 1 · 2020-12-18T12:35:39+0000

Answer: B.9

Explanation:

You know that
$\angle A$ ≅
$\angle B$ , this means that the measure of the angle A and the measure of the angle B are equal. Then:

$m\angle A=m\angle B$

You know that:

$m\angle A=4x-12$ and
$m\angle B=24$

Therefore, you can substitute them into
$m\angle A=m\angle B$ :

4x-12=24

Now you can solve for the variable "x":

$4x=24+12\\\\4x=36\\\\x=(36)/(4)\\\\x=9$

You can observe that this value of "x" matches with the option B.

Please log in or register to add a comment.