Missing side length
Use the Pythagorean Theorem (a2 + b2=c2) to find a unknown side length:
a = 5; c = 13 ; b=?
a = 5; c = 13 ; b=?
Correct answer:

Tips for related online calculators
See also our right triangle calculator.
You need to know the following knowledge to solve this word math problem:
arithmeticplanimetricsGrade of the word problem
Related math problems and questions:
- Hypotenuse and legs
A right triangle with hypotenuse c=25 dm is given. Calculate the length of the unknown side, given: side a=15 dm. Find the area of this triangle. Sketch the triangle and describe all its vertices and sides correctly.
- Rectangular field 4
Find the perimeter of a rectangular field whose length measures 5.20 m and its width measures 3.4 m. (Use the formula: Perimeter= 2L+2W)
- Right angled triangle 3
Side b = 1.5, hypotenuse angle A = 70 degrees, Angle B = 20 degrees. Find the length of its unknown sides.
- Equation of the circle
Find the equation of the circle with the center at (1,20), which touches the line 8x+5y-19=0
- Prealgebra ex
Find an unknown number/mixed number N in the given equation: N + 3 1/2 = 6 3/4
- Find all 2
Find all the complex solutions (write the answer in the form x+iy) of the system. {|z-12|/|z-8i|=5/3 ; |z-4|=|z-8|
- Find all
Find all right-angled triangles whose side lengths form an arithmetic sequence.