Yes
If it were, then 17 squared would equal 8 squared plus 15 squared. ie 289 would equal 64 + 225 which it does, so it is a pythagorean triangle.
Add the squares of the two smaller sides. Is it equal to the square of the biggest side? If yes, it is a right angled triangle. 82 + 152 = 64 + 225 = 289 172 = 289 The same, so it is right angled.
yes
do you have an angle measure? (if it is an equilateral triangle all legs will be 8 but i don't think this applies in your case)
Yes
The hypotenuse of a right triangle with legs of 8 and 15 centimeters is the square root of (8 squared plus 15 squared), which is 17.
17
If the sides of right angle triangle are 8 units and 15 units then the hypotenuse will be 17 units in length.
17 units using Pythagoras' theorem
It is a right angle triangle so area = 0.5*15*8 = 60 square feet
17 units in length
A right triangle with a hypotenuse of length 15 and a leg of length 8 has an area of: 50.75 units2
The length of the hypotenuse works out as 17 miles
The hypotenuse is the square root of (82 +152) = 17.
Using Pythagoras' theorem it is 17 units in length
Perimeter: 8+15+17 = 40 cm Area: 0.5*8*15 = 60 square cm