The diameter of a cylinder is 28 cm and its height is 20 cm. Find its total surface area.
Answers
Answered by
0
Answer:
2992 cm = 29.92 m
Step-by-step explanation:
Radius = Diameter / 2 = 28/2 = 14cm
=>tsa = (2 x 22 x 14)(14 + 20)/7 = 2992 cm
Answered by
5
Given:
A cylinder with -
- Diameter = 28 cm
- Height = 20 cm
What To Find:
We have to find -
- The total surface area.
Formula Needed:
Where -
- TSA = Total surface area.
- R = radius
- H = Height
Solution:
- Finding the radius.
We know that -
Substitute the value,
Divide 28 by 2,
- Finding the TSA.
Using the formula,
Substitute the values,
Multiply 14 with 14,
Multiply 14 with 20,
Cancel 7 and 196,
Cancel 7 and 280,
Multiply 2, 22, and 28,
Multiply 2, 22, and 40,
Add 1232 and 1760,
Final Answer:
∴ Thus, the total surface area of the cylinder is 2992 cm².
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