Q-3 Do as directed. (1) Measure of one of the angles of a parallelogram is 70°. What is the measure of its adjacent angle? (2) What is the measure of each of the angle of a rectangle? (3) How many sides does a regular polygon have, if each of its exterior angle is 20°?
Answers
Answered by
1
Answer:
(1) 110°
(2)90°
(3)18 sides
Step-by-step explanation:
(1) Given,
∠x= 70°
Solution,
Consider the two adjacent angles of a parallelogram are x and y.
The sum of two adjacent angle is 180°
∠x+∠y= 180°
70°+∠y= 180°
∠y=180°-70°=110°
Hence the adjacent angle is 110°
(2)Since a rectangle has four angles of equal measure, the measure of each must be 360/4, or 90 degrees.
(3) 360/20=18 sides
Each exterior angle of a regular polygon = 20 deg.
So the polygon has 360/20 = 18 sides.
Hope it helps you
Mark me as the brainiest
Thankyou•
Similar questions