Thursday

January 29, 2015

January 29, 2015

Posted by **Anonymous** on Sunday, October 21, 2012 at 10:50pm.

I need to find the measure of all angles and i have no idea of where to start, any help would be appreciated.

- Geometry -
**Steve**, Monday, October 22, 2012 at 4:43amsure you have an idea. What property do supplementary angles have? They add to 180°. Complementary angles add to 90°.

so, B = 180-A

C = 90-A

B = 4C, so

180-A = 4(90-A)

180-A = 360-4A

3A = 180

A = 60

complement = 30°

supplement = 120°, which is 4 times 30°

**Answer this Question**

**Related Questions**

geometry - I need help with this question. "The measure of the supplement of an ...

Geometry - the measure of the supplement of an angle is 40 more than two times ...

algrbra - Complimentary angles add up to 90º So translate the English into Math...

geometry - Twice the measure of the supplement of an angle is 39 degrees less ...

geometry - find the measure of an anGle if five times the measure of its ...

geometry - The measure of the angle’s supplement is 50 degree more than five ...

Algebra - In triangle ABC, the measure of angle B is 8 degrees more than three ...

geometry - how do you find the measure of angle t if if the measure of angle t ...

math geometry - in a triangle, the measure of the first angle is four times the ...

Geometry. Please help. - 1) Two angles are complementary. The measure of one ...