Question

thecurved surface area of a right curcular cylinder is 4.4meter square . if the radius of the baseof cylinder is 0.7meter. find its height​

Answer 1

Answer:

Right circular cylinder is generated by revolution of a rectangular sheet about one of its side so the area of a rectangular sheet gives us the curved surface area of the cylinder and length of the rectangular sheet is equal to the circumference of the circular base.

Step-by-step explanation:

Let the height of the circular cylinder be h.

Given:

Radius of the base of cylinder(r) = 0.7 m

 

Curved surface area of a right circular cylinder  = 2πrh

Curved surface area of a right circular cylinder  = 4.4m²     (given)

2πrh = 4.4m²

2×22/7×0.7×h= 4.4

h=4.4/4.4=1m

h = 1 m

Hence, the height of the right Circular cylinder is 1 m.

Answer 2

Answer:

⚠ _ Hello _⚠

Step-by-step explanation:

$c.s.a. = 2\pi \: rh \: \\ 4.4 = 2 \times \frac{22}{7} \times h \times 0.7 \\ 2.2 = \frac{11}{5} \times h \\h = \frac{11}{11} \\ h \: = 1m$

hope it's help