To find the third angle, we need to add the three angles of the triangle and then subtract from 180° (the sum of angles in a triangle).
90° + 142° + x = 180°
232° + x = 180°
x = 180° - 232°
x = -52°
Since angles in a triangle cannot be negative, this is not correct.
The correct answer is B. 52°.
if there was a triangle with one angel having 90° and the other having 142°.. what would the third angle be?
A. 232°
B. 52°
C. 38°
D. 92°
1 answer
1 answer