35.6k views
1 vote
Please find the angle measure for angle a and b

Please find the angle measure for angle a and b-example-1

1 Answer

2 votes
The 3 inside angles of a triangle need to equal 180

Now we can add all 3 angles and solve for x:

2x +x +60 = 180

Add 2x and x to get 3x

We now have 3x +60 = 180

Subtract 60 from each side:

3x = 120

Divide both sides by 3 to get x

x = 120/3
x = 40

Since angle b = x, angle b = 40 degrees

Angle a = 2x , so angle a = 2 *40 = 80 degrees

User Fiona
by
8.3k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories