Question

A car has to waper which do not over lap which waper has a blade of a length 25cm sweet I ng through an angle 115 . find the sides of a triangle

Answer 1

Answer:

here r=25cm theta=115°

the area swept by the blades form two sectors

area of sector=theta/360°Xpie

$\pie{r}^{2}$

total area=2X115/360X3.14x25x25

=23*3.14*625/36

=1253.82cm^2

the total area swept by the two blades is 1253.82cm^2