The ratio between the radius of the base and the height of a cylinder is 2:3. If its volume is 12936 cm³ then total surface area of the cylinder is
Answers
Answered by
2
Answer:
Let the radius =2x cm and height =3x cm. Then,
Volume of cylinder =πr
2
h
⇒
7
22
×(2x)
2
×3x=12936
⇒12x
3
=
22
12936×7
⇒x
3
=
12×22
12936×7
=343
⇒x=7
∴ Radius =14cm and Height =21cm
Total surface area =2πr(r+h)
=2×
7
22
×14×(14+21)
=2×
7
22
×14×35
=3080cm
hope it helps you in your work....✌
Answered by
1
3080cm² is the answer
↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓
mark as the brainliest pls and thank me
Similar questions