A regular pentagon is shown. What is the measure of the radius, C, rounded to the nearest hundredth? Use an appropriate trigonometric ratio to solve. a. 5.88 cm
b. 8.09 cm
c. 12.36 cm
d. 17.01 cm​

answer: 8d

step-by-step explanation:

45+5= 50+5=55+5=60

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

cross multiplying, we get :

⇒ (3) × (5) = (9) × (x)

⇒ 15 = 9x