a) measure of Arc PR :
mLPDR = 36° (given)
Arc(PR) length= ( © angle ÷ 360) x (2πr)
A= 36°÷360°x 2πr
A= 1/10 2πr
note: as in question value of r( radius) or D (diameter) is not given.
so here length of Arc PR is 2πr/10
b) value of x:
measure of angle PDR= 2x + 2
therefore 36°=2x+2
36 - 2= 2x
34 = 2x
34/2 = x
x = 17
so value of x is 17
