SOLUTION: 1. one leg of a right triangle is 20 cm and the hypotenuse is 10 cm longer than the other leg. find the length of the hypotenuse. 2. the sides of a triangle are 8, 15 and 17 un

Algebra ->  Pythagorean-theorem -> SOLUTION: 1. one leg of a right triangle is 20 cm and the hypotenuse is 10 cm longer than the other leg. find the length of the hypotenuse. 2. the sides of a triangle are 8, 15 and 17 un      Log On


   

Question 241311: 1. one leg of a right triangle is 20 cm and the hypotenuse is 10 cm longer than the other leg. find the length of the hypotenuse.
2. the sides of a triangle are 8, 15 and 17 units. if each side is doubled, by how many square units will the area of the triangle increase?
1 Let the hyp = c and the other 2 sides a and b
x^2= a^2 + b^2
x^2+20^2 = (x+10)^2
x^2 +400 = x^2 +20x+100
20x=300
X=15 ans
Answer by stellababy(3) About Me  (Show Source):
You can put this solution on YOUR website!
1 x^2 +400 = x^2 +20x +100
20x = 300
X=15
The hypotenuse = 25cm