I assume you mean a right triangle. Use the Pythagorean theorem.
a2 + b2 = c2
c2 = 152 + 82
c = sqrt(152 + 82)
c(hypotenuse) = 17
==============
The lengths of the legs of a right triangle are 15 cm and 20 cm. What is the length of the hypotenuse?
The length of the hypotenuse works out as 17 miles
17
15 units in length
Using Pythagoras' theorem it is 17 units in length
Find the length of the hypotenuse of a right triangle whose legs are 8 and 15 units in length.
The lengths of the legs of a right triangle are 15 cm and 20 cm. What is the length of the hypotenuse?
The length of the hypotenuse of a right triangle with legs of lengths 5 and 12 units is: 13The length of a hypotenuse of a right triangle with legs with lengths of 5 and 12 is: 13
The length of the hypotenuse works out as 17 miles
Using Pythagoras' theorem the length of the hypotenuse is 17 units
If the legs of a right triangle have measures of 9 and 12, the hypotenuse is: 15
39
17
15 units in length
~ 17.493 feet
Using Pythagoras' theorem it is 17 units in length
Use Pythagoras' theorem: 152+362 = 1521 and the square root of this is the hypotenuse which is 39 units in length