# Area - 7th grade (12y) - practice problems

#### Number of problems found: 503

- Chemical drum

A cylinder chemical drum is 220.5cm long and the radius of the drum is 42cm. Calculate the cost of painting the drum at the rate of RS.0.15/cm². - The floor

The floor in the gym has dimensions of 6 * 12m Parquets have a size of 30 * 20cm. Parquets are packed in packages of 50 pieces and one parquet package costs 150 CZK. How many packages will we need? How much will it cost? - Cylindrical solid

Find the surface area of cylindrical solid whose radius is 7.7 cm and height 12 cm. - The height of prism

The base of the perpendicular prism is formed by a right triangle with perpendiculars 30 cm and 40 cm long. This prism has the same volume as a cube with an edge length of 3 dm. Find its height in cm. - Peter's rectangle

Peter had a rectangle 2 cm wide and of unknown length. The line had a 2 cm rectangle whose length was equal to the perimeter of Peter's rectangle. When they put the rectangles together with their widths, they got a new rectangle with a circumference of 63 - Surface area 8

What is the surface area of a cylinder if diameter is 15m, height is 7m? - A rectangular 5

A rectangular picture frame is made of wooden strips that are ¾ inch wide. The outside edge of the frame is 8 ¼ inches long and 6 ¾ inches wide. Can a rectangular picture that is 7 inches long and 5 ½ inches wide fit inside the frame? CLEARLY EXPLAIN your - The formula

The formula for the area of a circle is (Pi x r x r) where r = measure of the radius and Pi = 3.14. What is the area of a circle whose radius measures 1 cm? - Cylinder S,V

What is the volume and surface area of a cylinder whose base has a diameter of 3.15 cm and a height of 25 cm. - Goat's pen

Savannah built a rectangular pen for her goat that was 20 yards long and 15 2/5 yards wide. What is the area of this pen? - The ratio

The ratio of the lengths of the two circles is 5: 2. Find the ratio of a a) the radii of these circles b) the areas for these circles - The cost 4

The cost to tile a floor that measures 7 x 6 square feet is $ 2,100. How much will it cost to tile a floor that measures 11 x 13 square feet? - Circle segment

A quarter circle with radius 4 has the same content as a circle segment with radius 3. What is the magnitude of the center angle of the circle segment? - ABS triangle

Point S is the center of the square ABCD. The ABS triangle has a content of 9 cm². What is the circumference of the square in cm? - Rectangular lot

What is the area of a rectangular lot measures 12 3/4 meter long and 8 5/6 wide? - Area of a room

Find the area of a room 9/7 m and 2/7 m. - The length 8

The length of a rectangular field is x + 4 and its width is x + 2. what is the area of the field? Answer in polynomials expressions. - Countertop

Sam it is constructing he measures a rectangle area are on the countertop of 18 1/2 x 35 1/3” he will need to cut his area out in order to place his sink and the opening. What is the product of the two measurements round to the nearest whole? - Height of the prism

The volume of the quadrilateral prism is 723.6 cm³. The base of this prism is a rhombus with a side 9 cm long and a corresponding height of 6.7 cm long. Find the height of the prism. - A rectangle 8

A rectangle measuring 6 cm and 4 cm is enlarged by the ratio 3:1. What is the area of the enlarged rectangle?

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Area - practice problems. Examples for 7th grade (seventh).