Question

HELP!!!
In a 45°-45°- 90° triangle, if the legs each have a length of 4, then what is the length of the hypotenuse?
A. the square root of2
B. 4the square root of2
C. 4
D. 4the square root of3

Answer 1

the 45-45-90 triangle is one of those special right triangles.
in this triangle this rule applies:
hypotenuse = (leg)(√2)
If you remember that rule, you can easily find the hypotenuse.
hypotenuse = 4 √2

You can also use the Pythagorean Theorem.
a^2 + b^2 = c^2
and you'll get the same answer.

Answer 2

so its b?

Answer 3

yeah