Monday

November 24, 2014

November 24, 2014

Posted by **Shelby** on Monday, September 10, 2012 at 8:44pm.

- geometry -
**Reiny**, Monday, September 10, 2012 at 9:30pmso clearly

A+B = 180

B+C = 180

subtract them

A - C = 0

A = C

given: B = 12x+8 , C = 8x - 8

in B+C=180

12x+8 + 8x-8 = 180

20x = 180

x = 9

so C = 72-8 = 64

but A = C

**so A = 64**

check:

A = 64°

B = 116°

C = 64°

is A+ B = 64+116 = 180 ? YES

is B+C = 116+64 = 180° yes

is A = C ? yes

**Answer this Question**

**Related Questions**

dma 040 - 2 angles are supplementary if their sum is 180degress. Larger angle ...

Geometry - Rays PQ and QR are perpendicular. p;oint S lies in the interior of ...

Help with deductive reasoning - Determine whether you can use the Law of ...

geometry - if the measurement of angle 1 plus the measurement of angle 4 equals ...

Geometry - Angle 1 is supplementary to angle 2. If m<1 = (12x + 6) and m<2...

geometry - solve for x if angle 1 and angle 2 are supplementary: angle 1= 5x+6 ...

geometry - obtuse triangle ABC with obtuse angle B. Point D on side AC such that...

geometry - I need help on this homework question KL and KJ are opposites rays....

Math check - what is the measure of an angle that is supplementary to the ...

geometry - Right triangle ABC is similar to triangle XYZ because angle B is ...