Sunday

December 21, 2014

December 21, 2014

Posted by **thomas** on Saturday, April 19, 2014 at 1:57pm.

a. 15 degree

b. 30 degree

c. 45 degree

d. 60 degree

e. 120 degree

please answer and explain

- math -
**bobpursley**, Saturday, April 19, 2014 at 5:12pmthe sum of the angles in a triangle is 180 degrees.

A+3A+8A=180

12A=180

A=15

B=3A=45 deg

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