Area of a shape + subtraction - practice problems
Number of problems found: 68
- ABC gifts
Arthur had 30 dollars to spend on 3 gifts. He spent 9 3/4 dollars on gift A and 4 1/2 dollars on gift B. How much money did he have left for gift C?
- The kitchen 2
The kitchen 5m by 3.5m has a cupboard covering 2m by 0.75m of the floor. What area of the floor remains uncovered?
Pearl wants to buy grass seed to cover her whole lawn with dimensions 7 x 11 meters, except for the pool. The pool is 5 3/4m by 3 1/2 m. Find the area the grass seed needs to cover.
- A piece 5
A piece if cloth is laid at the centre of a table 80 cm long and 60 cm wide and it leaves 5 cm all around. Find the area which is not covered by the piece of cloth.
- A square 3
A square (with side b=2ft) is removed from the right hand corner of a square board with side a= 12 ft. What is the area of the remaining board in square feet?
- Percentage 66724
If the rhombus side in the image increases by half, by what percentage will the area of the rhombus increase?
- Percentage 66714
They cut a full circle from a square plate with a side of 200 mm. What percentage is waste?
- Quadrilateral 66614
The picture shows a square ABCD with the center S and the side 8 cm long. Point E is any point on the CD side other than C and D. Calculate the area of the ASBE quadrilateral in cm².
- Right-angled 66364
From a rectangular board with dimensions of 2 m and 3 m, we cut isosceles right-angled triangles at the corners with an overhang of 40 cm. Calculate the ratio of the contents of the rest of the board to its total original area.
- Difference 66354
A circle is inscribed in a square with a side of 12 cm so that it touches all its sides. Calculate the difference between the area of the square and the circle.
- A rectangle 7
A rectangle that has been split into 24 parts, set in 4 rows of 6 pieces each. The parts in the top 3 rows have been shaded blue. The parts in the left 5 columns have been shaded purple. The first 5 parts in the top 3 rows are striped to show they are sha
- A rectangular 4
A rectangular garden has a length of 57 m and a width of 42 m. Calculate how much m² will decrease the garden area if the ornamental fence width of 60 cm is planted inside its perimeter.
- Picture 2
Picture free is of length 14.2 cm and breadth 10.4 cm. The frame has border of uniforms with 2.6 cm. Find the area of photograph.
Marcos wants to buy grass seed to cover his whole lawn, except for the pool. The pool is 7 1/2 m by 3 1/4 m. Find the area the grass seed needs to cover. Dimensions of the lawn are 50 m x 150 m.
- Metal washers
Metal washers with a diameter of 80 mm are cut from a strip of steel sheet with a width of 10 cm and a length of 2 m. Calculate the percentage of material waste if no material is lost when two adjacent circles meet.
- Calculate 39131
A circle describes a square with a side of 8 cm. Calculate the area of the rest of the circle if we cut out the square.
- Tree planting
The trapezoidal garden has bases 44 m and 16 m long. Their distance is 25 m. How many square meters of its area will remain for tree planting if we use 1/5 of the entire site to construct a cottage, backyard, and road. Is it possible to find the length of
- Round skirt
The cut on the round skirt has the shape of an annulus. Determine how much m² of fabric will be consumed on an 80 cm long skirt. The circumference of the waist is a circle with a smaller radius and is 69 cm.
- Rectangular garden
Rectangular garden has a length of 48.7 m, a width of 6.3 meters shorter than the length. How much mesh should be bought for its fencing if the gate is 2.9 m long and the gate 1.1 m? What is the area of the garden?
- Extending square garden
Mrs. Petrová's garden had the shape of a square with a side length of 15 m. After its enlargement by 64 m² (square), it had the shape of a square again. How many meters has the length of each side of the garden been extended?
Examples of area of plane shapes. Subtraction practice problems.