Perimeter - practice for 14 year olds
Number of problems found: 327
- Thales
Calculate the length of the Thales' circle described to the right triangle with hypotenuse 44.2 cm. - Height
Calculate the height of the equilateral triangle if its perimeter is 48. - The diagonal 4
The diagonal of a rhombus measures 16 cm and 30 cm. Find its perimeter. - Equilateral 37341
Calculate an equilateral triangle's perimeter and area with a side of 20 dm. - The perimeter 10
The perimeter of a rectangle is 162 inches. The length is 35 inches longer than the width. Find the length and width of the rectangle. - Length and width
The length of a rectangle is 7 cm more than the width. Find the width and length if the perimeter of the rectangle is 78 cm. - Iso triangle
An isosceles triangle with a base of 8 cm. Its circumference is 28 cm. Calculate the height of the triangle. - Perimeter of circle
Calculate the circumference of a described circle to the triangle with sides 9,12,15 cm. - Triangle
Calculate the triangle's heights ABC if the triangle's sides are a=82, b=44, and c=53. - One-fifth 80438
By what percent does the area of a square increase if its perimeter increases by one-fifth? - 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. - Parallelogram
Side a of a parallelogram is twice longer than side b. Its circumference is 78 dm. Calculate the length of the sides of a parallelogram. - Radius
Determine the circle's radius if its perimeter and area are the same numbers. - Meridian
What is the distance (length) of the Earth's meridian 15° when the radius of the Earth is 6370 km? - Circumference 2598
Calculate the circumference and area of the parallelogram ABCD, if a = 72cm and v = 4.3cm b = 6cm - Length 9
The length of a rectangle is 8 meters smaller than twice of breadth. If the perimeter of the rectangle is 50, find its length and breadth. - Equilateral triangle
Calculate the area of an equilateral triangle with a circumference of 72cm. - Equilateral triangle v2
An equilateral triangle has a perimeter 36 dm. What is its area? - Triangle SSS
Calculate the perimeter and area of a triangle ABC if a=40, b=35, and c=55. - Circumference 56291
Calculate the circumference of a circle circumscribed by a right triangle with squares 10 cm and 15 cm long.
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