2 years ago

In circle A shown below, is a diameter and the measure of is 36°.

1 answer:

6 0

The inscribed triangle is a right triangle. The diameter of the circle served as the hypotenuse of the triangle.

Angle C is 90°
Angle D = 36°/2 = 18°

<span>The measure of ∡DBC?
</span>
180° - 90° - 18° = 72°

Remember that interior angles of a triangle sum up to 180°.

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