Question
A cylindrical container closed a one end has a diameter of 10 cm and height 15 cm. Find:
The value of the tin to the nearest naira if tin plate cost 1.25 naira per square centimeter
The value of the tin to the nearest naira if tin plate cost 1.25 naira per square centimeter
Answers
Damon
area of bottom = pi d^2/4 = 3.14 * 100 /4 = 25 * 3.14
area of side = pi d h = 3.14 * 10 * 15 = 150 * 3.14
so
total area = 175 * 3.14
cost = 1.25 * 175 * 3.14
area of side = pi d h = 3.14 * 10 * 15 = 150 * 3.14
so
total area = 175 * 3.14
cost = 1.25 * 175 * 3.14
henry2,
A = pi*r^2+2pi*r*h = 3.14*5^2+6.28*5*15 = 549.8 cm^2.
Cost = 549.8 * 1.25 =
Cost = 549.8 * 1.25 =