Find the missing angle.

Triangle has 2 angles. One 45 degrees and the other of 106 degrees. My choices are

A) 84degrees B) 86 degrees C) 29° D) 82 degrees

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- Apr 12th 2008, 05:18 PMcrzemom941missing angle
Find the missing angle.

Triangle has 2 angles. One 45 degrees and the other of 106 degrees. My choices are

A) 84degrees B) 86 degrees C) 29° D) 82 degrees - Apr 12th 2008, 05:34 PMtopher0805
It a geometrical rule that the three angles in any triangle will have a sum of 180 degrees. In equation form:

$\displaystyle \theta_1+\theta_2+\theta_3=180

$

Since you already know two of the angles, finding the third is simply algebra.