Question

Please answer this math question asap!! 25 points and brainliest!
SHOW WORK OR NO BRAINLIEST!

Answer 1

Answer:

4775.2 in

Step-by-step explanation:

Formula: A=2πrh+2πr2

2·π·19·21+2·π·192

≈4775.22083

Radius of 38 is 19 so plug 19 the radius and 21 in the height

Answer 2

$\Large{\underline{\underline{\bf{Solution :}}}}$

★ Given :

Radius of cylinder = 38/2 = 19 in.

Height of cylinder = 21 in.

__________________________

★ To Find :

We have to find the surface area (T.S.A) of cylinder.

__________________________

★ Solution :

We know the formula to find the T.S.A of cylinder.

$\Large{\star{\boxed{\sf{T.S.A = 2\pi r(r + h)}}}}$

______________[Put Values]

$\sf{→T.S.A = 2 \times \frac{22}{7} \times 19(19 + 21)} \\ \\ \sf{→T.S.A = \frac{22}{7} \times 38 \times 40} \\ \\ \sf{→T.S.A = \frac{22}{7} \times 1520} \\ \\ \sf{→T.S.A = \frac{33440}{7}} \\ \\ \sf{→T.S.A = 4777.14} \\ \\ \sf{→T.S.A ≈ 4777.15 \: in^2} \\ \\ \Large{\implies{\boxed{\boxed{\sf{T.S.A = 4777.15 \: in^2}}}}}$