Question

find CSA of the cone whose radius is 4cm and height is 3cm​

Answer 1

Answer:

$</p><p>\huge\green{\boxed{\green{\mathfrak{\fcolorbox{red}{black}{\underline{\pink{A}\blue{n}\purple{s}\orange{w}\red{e}\green{r}}}}}}}$

Curved surface area of a cone = πrl, where l = √ (r2 + h2 ). Given r = 4 cm and h = 3 cm. l = √ (42 + 32 ) = 5 cm..............

Answer 2

Curved surface area of a cone = πrl,

where l = √ (r²+ h²).

Given r = 4 cm and h = 3 cm.

l = √(4²+3²)

= √(16+9)

= √(25)

= 5