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Grade 6 - Mathematics
9.9 Complementary Angles

If the sum of the measures of two angles is equal to 90, then they are called 'Complementary Angles'.
Adjacent and nonadjacent complementary angles are shown below
ma + mb = 1800
mc + md = 1800

Example: If the measure of A is 60, what is the measure of its complementary angle?

Solution: The measure of the complementary angle = 90 - 60 = 30


Directions: For the following questions, find the measure of the the angle complementary to the angle given, draw the figure and enter only the number in the boxes. For example, the complementary angle of 70 degrees is 20.
Q 1: If the measure of angle M is 15 degrees, what is the measure of its complementary angle?
Answer:

Q 2: If the measure of angle D is 58 degrees, what is the measure of its complementary angle?
Answer:

Q 3: If the measure of angle H is 49 degrees, what is the measure of its complementary angle?
Answer:

Q 4: If the measure of angle J is 72 degrees, what is the measure of its complementary angle?
Answer:

Q 5: If the measure of angle L is 25 degrees, what is the measure of its complementary angle?
Answer:

Q 6: If the measure of angle E is 64 degrees, what is the measure of its complementary angle?
Answer:

Q 7: If the measure of angle K is 14 degrees, what is the measure of its complementary angle?
Answer:

Q 8: If the measure of angle G is 36 degrees, what is the measure of its complementary angle?
Answer:

Question 9: This question is available to subscribers only!

Question 10: This question is available to subscribers only!


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