A cylinder has a height that is twice the length of the diameter. The diameter of the cylinder is 10 centimeters. What is the su
rface area of the cylinder?
Type the correct answer in the box. Use numerals instead of words.
The surface area is square centimeters.
1 answer:
Answer:
Step-by-step explanation:
Givens
pi = 3.14
d = 10 cm
h = 2*d
Formula
- The top of the cylinder is a solid circle. So the area of the circle is pi r^2
- There is both a top and bottom to the circle so the fomula is 2*pi*r^2
- The surrounding area of the cylinder is the circumference of the circle times the height. The circumference of the circle is 2*pi*r.
- Then you just multiply by the height.
- formula = 2*pi * r * h
The combined formula is given below.
SA = 2*pi*r^2 + 2*pi*r * h
Conversions
d = 10 cm
h = 2*10
h = 20 cm
r = d/2
r = 10 / 2
r = 5cm
Solution
SA = 2*pi*r^2 + 2*pi*r * h
SA = 2*3.14*5^2 + 2*3.14*5*20
SA = 157 + 628
SA = 785 cm^2
Answer: The surface area is 785 cm^2
You might be interested in
Answer:
A
Step-by-step explanation:
(x+2)©= x©+4x+4
Hsbsbjsjisoajja
3x2.7=8.1,,, im not sure this is what you were asking for but i hope it helps
XoXo
The median and mode are the same. The low and high values are the same.
The answer is c. okayyyyyy ty y ty ty e h a bc abjagained sjnsskemd bc dd
Answer:
x=−5/2or
Decimal Form:
x=−2.5
Explanation
