How do I find what AC is?

sqrt(882) or 29.698

Step-by-step explanation:

AD^2 + DC^2 = AC^2

sqrt(21^2+21^2) = 29.698

the answer is a i belaeve atleast thats what my calculator just gfave me

step-by-step explanation:

isaiah walks 3 miles due north, turns and then 5 miles due east. how far is he from his starting point?

a^2 + b^2 = c^2

let c = distance from starting point.

(3)^2 + (5)^2 = c^2

9 + 25 = c^2

34 = c^2

sqrt{34} = sqrt{c^2}

sqrt{34} = c