Mensuration Q: Right Triangle, xy=a^2?

[Cromptu]

Homework Statement

Choose the correct answer :
In a right angled triangle with sides x and y, hypotenuse z, the altitude drawn on the hypotenuse is a, then:

a) xy = a^2
b) 1/x+1/y = 1/a
c)x^2+y^2=2a^2
d)1/x^2+1/y^2=1/a^

Homework Equations

x^2+y^2=z^2

The Attempt at a Solution

 

[NascentOxygen]

You need to draw the diagram, to show that you understand the question.

Correct answer is:

(e) none of the above