Math grade 8

posted by .

Karim is painting a design on a cylindrical barrel. The height of the barrel is 1.2 m. The radius of its base is 0.3 m. What area will the paint have to cover? (Remember to include the bottom and lid of the barrel.)

  • Math grade 8 -

    area = 2πr^2 + 2πrh
    now just plug in your values for r and h.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Chemistry

    Assume you have a 50 L barrel full of basketballs and a 50 barrel of tennis balls. If you dump both barrels full of balls into a 100 L barrel, will the barrel be full?
  2. Calculus

    while shopping for wine for his wedding, Kepler noticed that the price of a barrel of wine (here assumed to be a cylinder) was determined solely by the length d of a dipstick that was inserted diagonally through a hole in the top of …
  3. 6th grade math

    Linda is painting a design. Each tube of paint will cover an area of 51 square centimeters. At least how many tubes of paint will Linda use to paint section c?
  4. mAtH

    a cylindrical barrel is 2.8 feet in diameter and 8 feet high. If a cubic foot holds about 7.5 gallons of liquid, how manygallons of water will this barrel hold?
  5. math

    a cylindrical barrel is 2.8 feet in diameter and 8 feet high. If a cubic foot holds about 7.5 gallons of liquid, how manygallons of water will this barrel hold?
  6. math

    i need help finding the surface area of the outside of a cylindrical barrel with a diameter of 10 inches and a height of 12 inches
  7. Physics

    An open tube of length L = 1.60 m and cross-sectional area A = 4.60 cm2 is fixed to the top of a cylindrical barrel of diameter D = 1.27 m and height H = 2.16 m. The barrel and tube are filled with water (to the top of the tube). Calculate …
  8. physics

    Placing a tube, with a radius of .30 cm, vertically into a barrel with a radius of 21 cm it was found that when the barrel was filled with water and the tube filled to 12 m the barrel burst. Calculate the mass of water in the tube …
  9. Physics

    A 75.0g bullet is fired at a muzzle velocity of 476 m/s from a gun with a mass of 4.75kg and a barrel length of 60.0cm. a. How long is the bullet in the barrel?
  10. Mensuration maths

    An open (hollow) cylindrical barrel has a base radius 14 cm and a height of 33cm A) find the volume and the surface area of the barrel. B) if a fly is at the point on the bottom inner rim of the barrel, how much distance (minimum) …

More Similar Questions