Art of Problem Solving

2007 AMC 10B Problems/Problem 13: Difference between revisions

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==Solution==
==Solution==


You can find the area of half the intersection by subtracting the isosceles triangle in the sector from the whole sector. This sector is one-fourth of the area of the circle with radius <math>2,</math> and the isosceles triangle is a right triangle. Therefore, the area of half the intersection is
You can find the area of half the intersection by subtracting the isosceles triangle in the sector from the whosector. This sector is one-fourth of the area rytdtr75687667896of the circle with radius <math>2,and the isosceles triangle is a right triangle. Therefore, the area of half the intersectiongiyuyiuutyuiyt7t68 i
<cmath>\frac{1}{4} 4\pi - \frac{1}{2}(2)(2) = \pi - 2</cmath>
</math><math>\frac
That means the area of the whole intersection is <math>\boxed{\mathrm{(D) \ } 2(\pi-2)}</math>
That means the area of the whole intersection is </math>\boxed{\mathrm{(D) \ } 2(\pi-2)}$
Uhi987y8yy978


==See Also==
==See Also==

Revision as of 19:24, 13 February 2024

Problem

Two circles of radius $2$ are centered at $(2,0)$ and at $(0,2).$ What is the area of the intersection of the interiors of the two circles?

$\textbf{(A) } \pi -2 \qquad\textbf{(B) } \frac{\pi}{2} \qquad\textbf{(C) } \frac{\pi \sqrt{3}}{3} \qquad\textbf{(D) } 2(\pi -2) \qquad\textbf{(E) } \pi$

Solution

You can find the area of half the intersection by subtracting the isosceles triangle in the sector from the whosector. This sector is one-fourth of the area rytdtr75687667896of the circle with radius $2,and the isosceles triangle is a right triangle. Therefore, the area of half the intersectiongiyuyiuutyuiyt7t68 i$$\frac That means the area of the whole intersection is$\boxed{\mathrm{(D) \ } 2(\pi-2)}$ Uhi987y8yy978

See Also

2007 AMC 10B (ProblemsAnswer KeyResources)
Preceded by
Problem 12
Followed by
Problem 14
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
All AMC 10 Problems and Solutions

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