abreeeraces1s abreeeraces1s

16-08-2016
Mathematics

Answered

A cow is tethered by a 100-ft rope to the inside corner of an L-shaped building, as show in the figure. Find the area that the cow can graze.

A20
B50
C100
D60
E50

Verified Answer :

taskmasters taskmasters

18-08-2016

I'll be using the formula for area of a circle. because based on the given image the cow can graze 1/4 area of the circle.

100 ft rope will be its radius.

Area of a circle = π r²
A = 3.14 (100ft)²
A = 3.14 10,000 ft²
A = 31,400 ft²

31,400 ft² x 1/4 = 7,850 ft²

7,850 ft² or 2,500 π ft²

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