Question

a cone of slant height 10 centimetre and the perimeter of its base is 44 CM then the curved surface area of the cone is​

Answer 1

Step-by-step explanation:

Given, Slant height (l) = 10cm.

Perimeter of its base= 44cm

ATP,

$2\pi \: r = perimeter \: of \: the \: base \: of \: a \: cone$

$2 \: \pi \: r = 44$

$2 \times \frac{22}{7} \times r = 44 \: \: (\pi = \frac{22}{7} )$

$\frac{44}{7} \times r = 44$

$r = 44 \times \frac{7}{44}$

$r = 7$

The radius of the base of a cone is 7 cm.

Curved Surface Area of a cone= πrl sq. unjt

$= \frac{22}{7} \times 7 \times 10 \: \: {cm}^{2}$

$= 22 \times 10 \: \: {cm}^{2}$

$= 220 \: \: {cm}^{2}$

Answer :- The curved surface area of a cone is 220 cm^2.

Answer 2

Answer:

220cm^

Step-by-step explanation:

slant height of cone=10cm

perimeter of its base=44cm

radius of the cone=?

2πr=perimeter of the base of a cone

2πr=44

2×22/7×r=44

44/7×r=44

r=44×7/44

r=7cm

CSA of cone is = πrl

=22/7×7×10

=22×10

=220cm^

therefore,the CSA of the lower limit of CI is 220cm^