One angle of a triangle is 39º, another angle is 84º. What is the measurement of the last angle of the triangle?
a
180º
b
51º
c
57º
d
96º
Answers
Answered by
0
Answer:
option c is the correct answer
Answered by
15
Answer:
c. 57°
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Step-by-step explanation:
We know that, sum of all angles in a triangle = 180°
Let the last angle be x
∴ => 39° + 84° + x = 180
=> 123 + x = 180
=> x = 180° - 123°
=> 57°
Therefore, the answer is c. 57°
Hope this helps !
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