Aright triangle has legs with lengths 20 cm and 21 cm.
what is the length of the hypotenuse?
_cm

 Ue use the theorem:

 The equation relating the lengths of the sides a, b and c, often called the "Pythagorean equation": 

where c represents the length of the hypotenuse  (the side opposite the right angle) and a and b the lengths of the triangle's other two sides.

;

b. would be the answer : )

step-by-step explanation:

step 1: add -16x to both sides.

16x−4y+−16x=64+−16x  

−4y=−16x+64

step 2: divide both sides by -4.

−4y /-4 = -16x + 64/-4

answer:   y=4x−16

hope i'm right

i can not answer the question due to the fact that you spelled "carton" as "cartoon", a cartoon is something you watch on tv, a carton is a box that holds things. and also you've been waiting for this question for a while so why don't you get off your lazy a** and try to figure it out for yourself for once!

step-by-step explanation:

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look above, and leave your comments down below, and don't for get a five stars and a and brainliest xd

sorry for the stars in the middle of words its because it wouldn't let me submit. xd