The diameter of a round dinner plate is 10 inches. what's the area of the plate?
a. 39.25 square inches
b. 39.25 inches
c. 78.5 square inches
d. 314 square inches

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

the answer is no solution, glad i could .