Question

the total surface area of a right circular cylinder is 880sq.cm. If its diameter is 20 cm, find the height of the cylinder ​

Answer 1

Answer:

Right cylinder

Solve for height

h≈4.01cm

d Diameter

20

cm

A Surface area

880

cm²

Using the formula

A=2πd

2h+2π(d

2)2

Solving forh

h=A

2πd

2﹣d

2=880

2·π·20

2﹣20

2≈4.00563cm

Answer 2

Answer:

$heya$

Step-by-step explanation:

Let r and h be the radius and height of the solid right circular cylinder respectively.

Let S be the total surface area of the solid right circular cylinder.

Given that r=10cm and S=880cm2

Now, S=880 ⇒2πr[h+r]

2×722×7×10(h+10)=880

⇒h+10=2×22×10880×7

⇒ h+10=14

Thus, the height of the cylinder, h=4cm

Now, the curved surface area, CSA is

2πrh=2×722×10×4=71760

Thus, the curved surface area of the cylinder =25173sq.cm.

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