Answer:
B= 97°
C = 43°
A = 40°
Step-by-step explanation:
Ok so we want to find the angle measurement for A.
We already have the angle measurement for B and C.
The interior angle of a triangles should ALL add up to 180°.
A + B + C = 180°
A = ???
B = 97°
C = 43°
So....
A + 97° + 43° = 180°
A + 140° = 180°
-140° -140°
A = 40°
So the angle measurement for A will be 40°
Check:
A + B + C = 180°
40° + 97° + 43° = 180°
137° + 43° = 180°
180° = 180°
Correct
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