Angle on a Straight Line:
Angles on one side of a straight line always add to 180 degrees. 30° + 150° = 180° When a line is split into 2 and we know one angle, we can always find the other one. |
Solved Examples:
Example: We know one angle is 45°, what is the other angle "a" ? Angle a is 180° − 45° = 135° | |
Example: What is angle "b" ? Angle b is 180° minus the sum of the other angles. Sum of known angles = 45° + 39° + 24°Sum of known angles = 108° Angle b = 180° − 108° = 72° |
Find the measure of in the following figure | |||
Right Option : C | |||
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Two lines AB and CD intersect at O. if Then find is ___________________ | |||
Right Option : C | |||
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Find the measure of in the following figure. | |||
Right Option : C | |||
View Explanation |
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