# Pythagorean theorem - 8th grade (13y) - math problems

#### Number of problems found: 443

- Find radius

Find the radius of the circle using the Pythagorean theorem where a=9, b=r, c= 6+r - The rotating

The rotating cone has a height of 0.9 m and the diameter of the base is 7.2 dm. Calculate the surface of the cone. (Hint: use Pythagorean theorem for a side of cone) - Proof PT

Can you easily prove Pythagoras theorem using Euclidean theorems? If so, do it. - Right triangle

It is given a right triangle angle alpha of 90 degrees beta angle of 55 degrees c = 10 cm use Pythagorean theorem to calculate sides a and b - Right triangle trigonometrics

Calculate the size of the remaining sides and angles of a right triangle ABC if it is given: b = 10 cm; c = 20 cm; angle alpha = 60° and the angle beta = 30° (use the Pythagorean theorem and functions sine, cosine, tangent, cotangent) - Height 2

Calculate the height of the equilateral triangle with side 27. - Triangle

Can an equilateral triangle have a right angle? - Distance

Wha is the distance between the origin and the point (18; 22)? - Height

Is right that in any right triangle height is less or equal half of the hypotenuse? - Distance

Calculate distance between two points X[18; 19] and W[20; 3]. - Cube - wall

V kocke ABCDEFGH je ?. Aký je povrch kocky? - Logs

The log has diameter 30 cm. What's largest beam with a rectangular cross-section can carve from it? - Cube diagonal

Determine the length of the cube diagonal with edge 37 mm. - Body diagonal

Calculate the length of the body diagonal of the 6cm cube. - Reverse Pythagorean theorem

Given are lengths of the sides of the triangles. Decide which one is rectangular: Δ ABC: 77 dm, 85 dm, 36 dm ? Δ DEF: 55 dm, 82 dm, 61 dm ? Δ GHI: 24 mm, 25 mm, 7 mm ? Δ JKL: 32 dm, 51 dm, 82 dm ? Δ MNO: 51 dm, 45 dm, 24 dm ? - Trio 2

Decide whether a trio of numbers is the side of a right triangle: 26,24,10. - Square

Calculate area of the square with diagonal 64 cm. - Height

Calculate height of the equilateral triangle if its perimeter is 8? - Equilateral triangle v2

Equilateral triangle has a perimeter 36 dm. What is its area? - 4s pyramid

Regular tetrahedral pyramid has a base edge a=17 and collaterally edge length b=32. What is its height?

Do you have an interesting mathematical word problem that you can't solve it? Submit a math problem, and we can try to solve it.