Mathematics
A solid metallic cylinder is cut into two identical halves along its height. The diameter of the cylinder is 7 cm and the height is 10 cm. Find : (a) The total surface area (both the halves). (b) The total cost of painting the two halves at the rate of ₹ 30 per cm2.
Related Questions
In the given diagram, ∆ABC ∼ ∆PQR. If AD and PS are bisectors of ∠BAC and ∠QPR respectively then:
∆ABC ∼ ∆PQS
∆ABD ∼ ∆PQS
∆ABD ∼ ∆PSR
∆ABC ∼ ∆PSR
15, 30, 60, 120 …… are in G.P. (Geometric Progression).
(a) Find the nth term of this G.P. in terms of n.
(b) How many terms of the above G.P. will give the sum 945 ?