Answer:
78.5 ft²
Step-by-step explanation:
In this situation, the dog's 5 ft leash is the radius of the circle that he forms.
So, the radius is 5.
Use the area formula, A =
r². Plug in 5 as r, and 3.14 as 
A =
r²
A = (3.14)(5²)
A = (3.14)(25)
A = 78.5
So, the area of the grass he can cover is 78.5 ft²
Answer:
Use the app photomath
Step-by-step explanation:
Answer:
Step-by-step explanation:
ΔABC & ΔADE are similar triangles

Cross multiply,
12*x = 12*4

x = 1 * 4
x = 4