Maths class 8 ncert Question try these page no 43
Answers
Answer:1. The sum of exterior angles x, y, z, p, q, r of the given hexagon is 360 degrees.
2.Yes, All exterior angles x, y, z, p, q, r are equal.
3.The measure of exterior angle is 60 degrees and the measure of interior angle is 120 degrees.
4. 1.) a) For a regular octagon, the sum of exterior angles will be 360 degrees.
b) All exterior angles will be equal to 45 degrees.
c) Exterior angle =135 degrees
Interior angle =45 degrees
2.) a) For a regular 20gon, the sum of exterior angles will be 360 degree.
b) All exterior angles will be equal to 18 degrees.
c)Exterior angle =18 degrees
Interior angle =162 degrees.
Step-by-step explanation:
Try These:
1.The sum of exterior angles x, y, z, p, q, r of the given hexagon is 360 degrees.
As the polygon has 6 sides, each interior angle will be 120 degrees by the formula (n-2) * 180 degree. Sum of any exterior angle and interior angle will be 180 degrees (Linear pair). Each exterior angle will be equal to 60 degrees.
Therefore, the sum of exterior angles will be 360 degrees.
2. Yes, All exterior angles x, y, z, p, q, r are equal.
3.The measure of exterior angle is 60 degrees and the measure of interior angle is 120 degrees.
4. 1.) a) For a regular octagon, the sum of exterior angles will be 360 degrees.
Each interior angle of octagon will be (8-2) * 180 degrees /8= 135 degrees. Therefore, each exterior angle will be 45 degrees. The sum of which will be 360 degrees.
b) All exterior angles will be equal to 45 degrees.
c) Exterior angle =135 degrees
Interior angle =45 degrees
2.) a) For a regular 20gon, the sum of exterior angles will be 360 degree.
b) All exterior angles will be equal to 18 degrees.
c)Exterior angle =18 degrees
Interior angle =162 degrees.