Question

find the curve surface area if a cone with radios 2.1 and height 4.4​

Answer 1

Answer:

area of cone= pie× r×l

22÷7×2.1×l

we will find the letent height firstly

l^2=r^2+h^2

l^2=2.1^2+4.4^2

l^2=4.41+19.36

l^2=23.77

l=48.75

when l is find then put it

csa of cone= pie×r×l

22÷7×2.1×48.75

yrr solve kr liyoo ab

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Answer 2

Answer:

$\huge\pink{Cone}$

CSA of cone =πrl

$\pi = \frac{22}{7}$

$r = 2.1$

$h = 4.4$

$l = \sqrt{ {r}^{2} + {h}^{2} }$

l = slant height

$l = 4.87$

$= \pi \: rl$

$= \frac{22}{7} \times 2.1 \times 4.87$

$= 32.1$

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