OPT

What is the perimeter of a right triangle with the legs 14 cm and 21 cm long?

Correct answer:

x =  60.24 cm

Step-by-step explanation:

$$\begin{gathered} c^2=a^2+b^2 \\ c=\sqrt{a^2+b^2}=\sqrt{14^2+21^2}=25.24cm \\ x=a+b+c=14+21+25.24=60.24\text{ cm} \end{gathered}$$

Try another example

Related math problems and questions:

• Is right?
  Determine whether the triangle with legs (catheti) 19.5 cm and 26 cm and length of the hypotenuse 32.5 cm is rectangular?
• IS trapezoid
  Calculate the length of diagonal u and height v of isosceles trapezoid ABCD, whose bases have lengths a = |AB| = 37 cm, c = |CD| = 29 cm and legs b = d = |BC| = |AD| = 28 cm.
• Right isosceles
  Calculate area of the isosceles right triangle which perimeter is 26 cm.
• Right angled
  From the right triangle with legs 12 cm and 20 cm we built a square with the same content as the triangle. How long will be side of the square?
• Diagonals
  A diagonal of a rhombus is 20 cm long. If it's one side is 26 cm, find the length of the other diagonal.
• ISO trapezoid v2
  bases of Isosceles trapezoid measured 20 cm and 4 cm and its perimeter is 55 cm. What is the are of a trapezoid?
• Rhombus
  Calculate the perimeter and area of ​​a rhombus whose diagonals are 39 cm and 51 cm long.
• Triangle eq
  Calculate accurate to hundredths cm height of an equilateral triangle with a side length 12 cm. Calculate also its perimeter and content area.
• Triangular prism
  The triangular prism has a base in the shape of a right triangle, the legs of which is 9 cm and 40 cm long. The height of the prism is 20 cm. What is its volume cm³? And the surface cm²?
• R Trapezium
  Rectangular trapezium has bases 21 and 10 and area 92 cm². What is its perimeter?
• Hypotenuse
  Calculate the length of the hypotenuse of a right triangle with a catheti 71 cm and 49 cm long.
• Rectangle
  The rectangle is 21 cm long and 38 cm wide. Determine the radius of the circle circumscribing rectangle.
• Circumscribed circle to square
  Find the length of a circle circumscribing a square of side 10 cm. Compare it to the perimeter of this square.
• Square diagonal
  Calculate the length of the square diagonal if the perimeter is 172 cm.
• Arm
  Calculate the length of the arm r of isosceles triangle ABC, with base |AB| = 14 cm and a height v=18 cm.
• Height
  Calculate height of the equilateral triangle if its perimeter is 8?
• Isosceles right triangle
  Calculate the area of an isosceles right triangle whose perimeter is 252 cm.