Question

Find the missing length of the triangle.

Answer 1

a^2+b^2=c^2
21^2+20^2=c^2
441+400=c^2
841=c^2
square root on both sides to get the variable by itself
29=c

Answer 2

Answer:

29

Step-by-step explanation:

I reccomend learning the pythogream therom as it will help.