Question

The hypotenuse of an isosceles right triangle has length 4. How long is each leg?

Answer 1

you know 2 sides are the same on an a silly triangle.. I mean isosceles.. so the hypotenuse will be longer but the other two sides are the same

use
`C^(2)` =
`A^(2)` +
`B^(2)` ( Pythagoras theorem )

Explanation:

`4^(2)` =
`A^(2)` +
`A^(2)` ( b/c the side are the same length the can both be called A )

16 = 2
`A^(2)`

8 =
`A^(2)`

`√(8)` = A

not a whole number but.. it's still a good answer square root of 8 is about 2.8284 on my calculator