Question

IIS 1.2.
Solution:
X+ 90° +50° +110° = 360°
x + 250° = 360°
(Why?)
x = 110°
TRY THESE
Fig 3.9
Take a regular hexagon Fig 3.10.
1. What is the sum of the measures of its exterior angles x, y, z, p, q,r?
2. Is r=y=z=p=q=r? Why?
3. What is the measure of each?
() exterior angle
(i) interior angle
4. Repeat this activity for the cases of
1) a regular octagon (ii) a regular 20-gon
Fig 3.10

Answer 1

IIS 1.2
When you total up the values it comes up with a value of 250
And the figure which you are solving must be a quadrilateral so the total of all sides will be 360
Therefore 360-250 will result in 110
And for the rest u should give us the figure
Hope it helps u!!

Answer 2

Answer:

×+90+110=360

×+ 250=360

×=360 - 250

×= 110