In triangle MNO, angle M is 50 degrees larger than angle N, and angle O is twice as large as angle M. If angle N is 20 degrees, what is the measure of angle O?

In a parallelogram ABCD, the measure of angle A is twice the measure of angle B. If angle A measures 120 degrees, what is the measure of angle C?

Triangle JKL is an isosceles triangle with angles J and K of equal measure and angle L different. If angle L is 40 degrees, what is the measure of angle J?

In triangle DEF, angle D and angle E are the same size, and angle F is 30 degrees larger than twice the size of angle D. If angle F is 90 degrees, what is the measure of angle D?

In quadrilateral ABCD, angle A is three times as large as angle B, angle C is twice as large as angle B, and angle D is equal to angle B. If angle B is 30 degrees, what is the measure of angle A?

If angle A and angle B are complementary angles and angle A is 25 degrees, what is the measure of angle B?

In a triangle XYZ, angle X is twice as large as angle Y, and angle Z is three times as large as angle Y. What is the measure of angle Y?

Triangle PQR has angles measured as follows: angle P = 2x, angle Q = x + 30, and angle R = x - 10. What is the measure of angle P?

In triangle ABC, angle A measures 45 degrees and angle B measures 55 degrees. What is the measure of angle C?

A straight line forms two adjacent angles, angle 1 and angle 2. If angle 1 measures 130 degrees, what is the measure of angle 2?