Question

Find the cost of the metal sheet to be required to make the closed cylinder at the rate of Rs 50 per sq. m, if its height is 2.6m and the radius is 1.4 m.?
(1) Rs1144 (2) Rs1320 (3) Rs1760 (4) Rs1232 ​

Answer 1

Step-by-step explanation:

TO MAKE A CLOSED CYLINDER WE SHOULD FIND THE TSA OF THE CYCLINDER

TSA=2πr(h+r)

TSA=

$\frac{2 \times 22 \times 1.4(2.6 + 1.4)}{7}$

=

$\frac{2 \times 22 \times 1.4 \times 4}{7}$

AFTER DOING...

=35.2m

RS. 50 PER Sq. m

FOR 35.2=HOW MANY RUPEES??

=50×35.2

=Rs. 1760

THEREFORE THE COST OF MAKING A CYCLINDER IS Rs.1760.