Question

Curved surface area of a cone is
90 sq cm. What will be the
radius of the cone if its slant
height is 90 cm ?​

Answer 1

Answer:

radius=0.31 cm

Step-by-step explanation:

CSA of cone = 90 cm^2

slant height (l) = 90 cm

CSA = 22/7 × 90 × r

= 90= 1980/7× r

=630=1980×r

= r = 630/1980

= r = 0.31

Therefore,radius of the cone is 0.31 cm