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ELEN [110]
2 years ago
11

A side of the triangle below has been extended to form an exterior angle of 66°. Find

Mathematics
1 answer:
Rainbow [258]2 years ago
4 0

Step-by-step explanation:

By Exterior Angle Theorem, the sum of the 2 inner angles in the triangle will be equal to the exterior angle.

=> x + 48° = 66°, x = 18°.

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