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МатематикаВопрос:
In diagram a), if OA is a radius and M is a point on OA, and MB is perpendicular to OA, what is the measure of angle OMB?
Ответ:
The image shows that MB is perpendicular to OA, which means that the angle OMB is a right angle.
Answer: 90°
Похожие
- In diagram b), O is the center of the circle and AO = 2 cm. What is the measure of angle ABC and the length of AC and OB?
- In diagram c), AB and AC are tangents to the circle from point A. The angle OAC is 90 degrees, the angle OAB is 90 degrees, OB = OC, angle OAB = angle OAC, AO = 7 cm, and angle OAB = 28°. What is the measure of angle BAO and the length of AC?
