Question

Find the measure of angle 3.

a) 60°
b) 36°
c) 72°
d) 54°

Answer 1

OKay so this is a pentagon!
Thre is a formula that gives us the sum of all the interior angles (n-2)*180
Where n is the number of sides of the figure!
So here if it is a regular pentagon!
The total sum of interior angles would be (5-2)*180 = 540'
Thus each angle should be 540/5 = 108!!
And in this case the line joing the mid-point of the pentagon bisects the angle 108'
Thus giving us 3 as???
Getting me?

Answer 2

yes..kind of

Answer 3

So the answer is 54'! :)

Answer 4

haha thanks once again! :D