Question

A closed tin is in the shape of a cylinder of diameter 10cm and height 15cm.Use the value 3.14 for pier to find:
a)the total surface area of the tin,
b)the value of the tin to the nearest naira if tin plate costs 450 per m2.

Answer 1

The surface area consists the area of 2 equal circles + the area of a rectangle
= 2Pr^2 + 2πrh
= 2(π(5^2)) + 2π(5)(10)
=.... you do the arithmetic

once you have the total area, multiply that by the cost per square unit.

Careful here, notice my answer above will be in cm^2, but the cost is in m^2
so you have to convert.

Answer 2

Thanks this question has been bugging me for weeks now.

Answer 3

Why am I banned

Answer 4

I still dont understand

Answer 5

Please can someone explain this to me

Answer 6

Slightly bad but very good job