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

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 = +  ( Pythagoras theorem )

Step-by-step explanation:

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

16 = 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

c. 27 units.

step-by-step explanation:

we are told that in circle a, ∠bae ≅ ∠dae.

we can see from our given diagram that in and ;

, as these are radii of our given circle.

therefore, by sas congruence postulate.

hence, side be will be equal to side de as corresponding parts of congruent triangles are congruent. so we can set an equation to find the value of x as:

now let us substitute x=17 in the expression for the length of be.

therefore, length of be will be 27 units and option c is the correct choice.