Pythagorean theorem - practice for 13 year olds - page 3 of 35
Number of problems found: 688
- Tangent of an angle
Suppose the tangent of an angle of a right-angled triangle is 0.8. Then its longest side is: - Equilateral triangle
Calculate the area of an equilateral triangle with a circumference of 72cm. - Equilateral triangle
The equilateral triangle has a 23 cm long side. Calculate its area. - Broken tree
The tree is broken at 4 meters above the ground. The top of the tree touches the ground at a distance of 5 meters from the trunk. Calculate the original height of the tree.
- Equilateral triangle v2
An equilateral triangle has a perimeter 36 dm. What is its area? - Base
Compute the base of an isosceles triangle, with the arm a=20 cm and a height above the base h=10 cm. - Circumference 56291
Calculate the circumference of a circle circumscribed by a right triangle with squares 10 cm and 15 cm long. - Perpendiculars 46081
Calculate the size of the hypotenuse in a triangle if its perpendiculars are 8 cm and 8.4 cm long. - Calculate 6198
Calculate the diagonal length of the 87 cm and 60 cm TVs and round the result to units.
- The diagonals
The diagonals in the diamond ABCD are 6 cm and 8 cm long. What is the perimeter of this diamond? - The triangle
The triangle has sides 5 cm long, 5 cm, and 8 cm long. What is the area of the triangle? - ABC isosceles
ABC isosceles rights triangle the length of each leg is 1 unit what is the length of the hypotenuse AB in the exact form - Right isosceles triangle
What can be the area of a right isosceles triangle with a side length of 8 cm? - Hypotenuse
Calculate the length of the hypotenuse of a right triangle with a catheti 71 cm and 49 cm long.
- Inscribed rectangle
The circle area is 216. Determine the area of the inscribed rectangle with one side 5 long. - Rhombus
Find the length of the other diagonal and the area of the rhombus. The perimeter of a rhombus is 40 cm, and one of the diagonals is of length 10 cm. - Rhombus
Calculate the perimeter and area of a rhombus whose diagonals are 39 cm and 51 cm long. - Square and circles
Square with sides 83 cm is circumscribed and inscribed with circles. Determine the radiuses of both circles. - Ladder 35331
The ladder is 13 m long, and its lower part is 5 m away from the wall. How high does the ladder reach?
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