Question

Please answer this math question asap!! 25 points and brainliest!
WILL GIVE BRAINLIEST ONLY IF YOU SHOW YOUR WORK!

Answer 1

Answer:

54.9275 sq. cm

Step-by-step explanation:

slant height of a cone (l) = √(r²+h²)

l = √(3²+5²)

l= √(9+25)

l = √34

l = 5.830cm

Now Curved Area of Cone = πrl

A = 3.14 × 3 × 5.830 cm²

A = 54.9275 cm²

Answer 2

Answer:

here,

r = 3 m

h = 5m

so ,

l =

$\sqrt{ {r}^{2} + {h}^{2} } \\ = \sqrt{ {3}^{2} + {5}^{2} } \\ = \sqrt{9 + 25 } \\ = \sqrt{34 \: } = 5.8$

now,

surface area = πrl

= 3.14 * 3* 5.8

= 54.6 m²

≈ 55 m²