Question

A torch light illuminates the wall in the shape of a circle of diameter 26 cm .Find the area of the wall illuminated correct two decimal points​
Plz tell fast

Answer 1

ANSWER:-

GIVEN:-

Circle's Diameter = 26cm

TO FIND:-

Circle's area.

therefore,

Circle's Area = πr²(here,r=radius)

=22/7×(26/2cm)²

= 531.14cm²...

Area of wall illuminated here=531.14cm².

FORMULAS ABOUT CIRCLE IMPLEMENTED HERE:-

r=d/2

area=πr²

here,r=radius

MORE FORMULAS:-

circle's perimeter = circumference = 2πr

here, r=. radius..