Examples of area of plane shapes - page 11 of 131

Number of problems found: 2605

Modulus and argument
Find the mod z and argument z if z=i
Equilateral triangle v3
Calculate an equilateral triangle's perimeter and area with a side of 20 dm.
Squares
A square of 12 dm perimeter is cut into smaller squares, whose side is the third side of the square. What is the area of the rest?
Diamond - simple
Calculate the circumference and area of the diamond if the side is 5 cm long and the height is 3 cm long.
Perimeter of square
The square has a circumference of 17cm. What is its area?
Area of a triangle
What is the area of a triangle that has a base of 4 1/4 and a height of 3 3/3?
Drawer
The rectangular face of a drawer has a perimeter of 108 cm and a width of 18cm. Find the length and the area of the rectangular face of the drawer.
Inscribed circle
The circle inscribed in a triangle has a radius of 3 cm. Express the area of the triangle using a, b, and c.
Side of a square
What is the length of the side of a square when its area is 64 cm square?
Circles
The area of a circle inscribed in a square is 7. What is the area of a circle circumscribed around a square?
Rectangle
The rectangle area is 182 dm², and its base is 14 dm. How long is the other side? Calculate its perimeter.
Rectangular 64274
We needed 82 m of wire mesh to fence the rectangular garden. The width of the garden is 16m. What is its area?
Triangle 8320
Is there a triangle with heights of 4, 7, and 10 meters?
Square 7482
1dm square - 7000mm square
Rectangle 73
Suppose a rectangle has a height of 9 cm and a width of 4 cm. What is the rectangular area?
Isosceles triangle
Find the area of an isosceles triangle whose leg is twice the base, b=1
Long and wide
What is the area of a rectangle that is 1 1/4 meters long and 3/4 of a meter wide?
Equilateral triangle
Find the area of an equilateral triangle with a side of 15 cm.
Dimensions - rectangle.
Find at least six different dimensions (in meters) of a rectangle with a capacity of 20 m².
Area of a rectangle
Calculate a rectangle area with a diagonal of u = 12.5cm and a width of b = 3.5cm. Use the Pythagorean theorem.

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