katelyn9510
contestada

Find the surface area of a cylinder with a diameter of 10 and a height of 45. Use 3.14 for pie. Round your answer to the nearest tenth.

A) 1575
B) 1573
C) 1570
D) 1569

Respuesta :

mperemsky
Area = 2(Pi)rh + 2(Pi)r^2
r = 5
h = 45
Pi = 3.14

2(3.14)(5)(45) + 2(3.14)(25)
1413 + 157 = 1570

Answer: C
PHDFlopper
A=2[tex] \pi [/tex]rh+2[tex] \pi [/tex][tex] r^{2} [/tex]=2*[tex] \pi [/tex]*5*45+2*[tex] \pi [/tex]*[tex] 5^{2} [/tex]≈1.57079633
The answer is C) 1570