Question

Find the missing angle measurement.

?
OA) 3 degrees
OB) 13 degrees
OC) 23 degrees
OD) 90 degrees
67°

Answer 1

23 degrees

Explanation:

Sum of interior angles in a triangle = 180°

∴Sum of interior angles in the right- angled triangle in the question:
67° + 90° + ? = 180°

= ? = 180° - 90° - 67°

∴ ? = Missing angle measurement = 23°

= 23 degrees