Answer:
706.5 ft²
Step-by-step explanation:
A. Width of the rectangle
The formula for the area of a rectangle is
A = lw
But, l = 3w, so,
A = (3w)w
= 3w² = 12
w² = 4 Divided each side by 3
w = 2 ft Took the square root of each side
B. Length of rectangle
l = 3w = 6 ft
C. Diameter of circle
d = 5l = 5 × 6 = 30 ft
D. Radius of circle
d = 2r
r = d/2 Divided each side by 2
r = 30/2 = 15 ft
E. Area of circle
A = πr² = 3.14 × 15² = 3.14 × 225 = 706.5 ft²
The area of the circle is 706.5 ft².
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Answer:
The number of goats in the farm is 
The number of sheep in the farm is 
Step-by-step explanation:
Let
x----> the number of goats in the farm
y----> the number of sheep
we know that
----> equation A
-----> equation B
substitute the equation B in equation A and solve for y
Find the value of x
therefore
The number of goats in the farm is
The number of sheep in the farm is
Answer:
Step-by-step explanation:
