Thursday

August 21, 2014

August 21, 2014

Posted by **Beth** on Thursday, April 28, 2011 at 12:40pm.

- Algebra 2 review -
**Henry**, Friday, April 29, 2011 at 7:28pmB = X deg.

A = 3X/5 deg.

C = X + 3X/5 + 20.

A + B + C = 180 deg.

3X/5 + X + (3X/5+X+20) = 180,

6X/5 + 2X + 20 = 180,

6X/5 + 2X = 180 - 20 = 160,

Multiply both sides by 5:

6X + 10X = 800,

16X = 800,

X = 50 deg = B.

A = 3X/5 = 3*50/5 = 30 deg.

C = 30 + 50 + 20 = 100 deg.

**Related Questions**

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

ALGEBRA - In triangle ABC, the measure of angle B is 27 degrees more than three ...

Algebra2 - in the triangle ABC, the measure of angle b=21 more than three times ...

algebraic equation and inaqualities - in a triangle XYZ,the measure of angle Y ...

Geometry - Given: in triangle ABC, angle B= 120 degrees Prove: angle A does not...

algebra - in a triangle abc, the measure of angle b is 34 degrees more than ...

Geometry - Angle ABC and ange DBE are vertical angles,the measure of angle ABC...

Geometry - Angle ABC and ange DBE are vertical angles,the measure of angle ABC...

Math - If triangle ABC is similar to triangle DEF and the scale factor is 1:2 ...

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