If two angles are supplementary and one angle is 5°.

If two angles are supplementary and one angle is 5° more than four times the other, find the angles.

Solution:

In the given diagram, lines AB and CD intersect at O. If ∠1 + ∠3 = 78°, find the size of ∠2.

Solution:

More Solutions:

• Can two right angles be complementary?
• Find the complement of each of the following angles:
• Identify which of the following pairs of angles.
• Find the angle which is equal to its complement.
• Two supplementary angles are in the ratio of 2 : 7.
• If an angle is half of its complement.