A circle has a radius of 12.6 cm. What is the exact length of an arc formed by a central angle measuring 100°?
o 79.12 cm
o 71 cm
0 441 cm
• 8.51 cm

idk wbu

step-by-step explanation:

my computer is slow i can not see it sorry

option (a)

step-by-step explanation:

step 1:   take 2 number whose product equal to 25..

and sum of those two number are -10

step: 2 for example here if we take 5,5 are the number,,

5*5=25

and

5+5=10

but we need -10

so if we take   -5,-5

so -5*-5=25

and -5+(-5)=-10

s0

come the equation

replace -10x by these number

like -5x -5x+25

take common

x(x-5)-5(x-5)=0

(x-5)(x-5)=0