Question

plźzzz help me of class 8 solution

Answer 1

Here it is
1. 360° as in a regular hexagon the measure of exterior angle is 60° and as there are 6 angles so it is 60×6=360°.

2. Yes, because it is a regular hexagon and in a regular hexagon all the interior angles are same for which all the exterior angles are also same.

3. (I)The measure of each exterior angle is 60°
(II)The measure of each interior angle is 120°

4. (I)For a regular octagon :-

(1) 360° as in a regular octagon the measure of exterior angle is 45° and as there are 8 angles so it is 45×8=360°.

(2) Yes, because it is a regular octagon and in a regular octagon all the interior angles are same for which all the exterior angles are also same.

(3) (I)The measure of each exterior angle is 45°
(II)The measure of each interior angle is 135°

(II)For a regular 20-gon:-

(1) 360° as in a regular 20-gon the measure of exterior angle is 18° and as there are 20 angles so it is 18×20=360°.

(2) Yes, because it is a regular 20-gon and in a regular 20-gon all the interior angles are same for which all the exterior angles are also same.

(3) (I)The measure of each exterior angle is 18°
(II)The measure of each interior angle is 162°

I hope this will help you