ek belan ki height 25cm hai aur Aadhar Ka area 154square cm hai to curved area of cylinder gyat kare
Answers
Answer:
Curved surface area = 1100cm²
Step-by-step explanation:
Given---> Height of cylinder = 25cm
Area of base = 154cm²
To find ---> Curvrd surface area of cylinder
Solution---> Let height and radius of cylinder be h and r respectively.
ATQ, h = 25cm , Area of base = 154
We know that area of base of cylinder= πr²
=> 154 = ( 22 / 7 ) r²
=> 154× 7 / 22 = r²
=> 7 × 7 = r²
=> 7² = r²
=> r = 7 cm
Curved surface area = 2 π r h
= 2 × ( 22 / 7 ) × 7 × 25
= 2 × 22 × 25
= 1100 cm²
Additional information--->
(1) Total surface area of solid cylinder
= 2πr ( r + h )
(2) Volume of solid cylinder = πr²h