Question

Find the cost of polishing a circular pan of diameter 28cm at a rate of cost 12.50 per sq.cm.​

Answer 1

Answer:

please mention the height of the pen

Answer 2

Answer:

Diameter = 28 cm

Radius = 28/2 = 14 cm

Area =

$\pi \: r {}^{2}$

=22/7 × 14²

=22/7 ×14×14

=22×14×2

= 616 cm²

Cost of polishing = 12.50 per sq. cm

Cost of polishing = 616×12.50 sq. cm

= 7700 sq. cm