Question

Help Needed!! Find The Measure Of Angle A In The Triangle

Answer 1

A=40°

Explanation:

All angles in a triangle add up to 180°, so we take 60 away from 180 because we know that angle.

180-60=120

Next, we add up the number of x,

10x+20x=30x

Third, we need to find out what x is, so we divide 120 by 30, which gives us 4.

x=4

to find out what 10x is (A), we multiply 4 by 10

4×10=40

A=40