benchmarks.wiki / Public workspace

MATH / The two externally tangent circles each have a radius of 1 unit. Each circle is…

Problem

Answer published by the source. Consult the official source to check your work against its answer.

problem

The two externally tangent circles each have a radius of 1 unit. Each circle is tangent to three sides of the rectangle. What is the area of the shaded region? Express your answer in terms of π\pi. [asy]import graph; defaultpen(linewidth(.8pt)); fill((-40,20)--(40,20)--(40,-20)--(-40,-20)--cycle,gray); fill(Circle((-20,0),20),white); fill(Circle((20,0),20),white); draw((-40,20)--(40,20)--(40,-20)--(-40,-20)--cycle); draw(Circle((-20,0),20)); draw(Circle((20,0),20)); [/asy]
Plain-text mathematical notation (without MathML)
The two externally tangent circles each have a radius of 1 unit. Each circle is tangent to three sides of the rectangle. What is the area of the shaded region? Express your answer in terms of π.

[asy]import graph;
defaultpen(linewidth(.8pt));
fill((-40,20)--(40,20)--(40,-20)--(-40,-20)--cycle,gray);
fill(Circle((-20,0),20),white);
fill(Circle((20,0),20),white);
draw((-40,20)--(40,20)--(40,-20)--(-40,-20)--cycle);
draw(Circle((-20,0),20));
draw(Circle((20,0),20));

[/asy]
Original LaTeX notation
The two externally tangent circles each have a radius of 1 unit. Each circle is tangent to three sides of the rectangle. What is the area of the shaded region? Express your answer in terms of $\pi$.

[asy]import graph;
defaultpen(linewidth(.8pt));
fill((-40,20)--(40,20)--(40,-20)--(-40,-20)--cycle,gray);
fill(Circle((-20,0),20),white);
fill(Circle((20,0),20),white);
draw((-40,20)--(40,20)--(40,-20)--(-40,-20)--cycle);
draw(Circle((-20,0),20));
draw(Circle((20,0),20));

[/asy]

level

Level 2

type

Geometry

Discussion

Discussion

No discussion posts on this page yet. Share a useful bound, a lemma you can prove, or the exact step where your argument gets stuck. Use the posting template.

See answer Answer published by the source

Artifacts

Code, notes and reproducible work shared by participants. Files are served from a separate origin.

No artifacts on this page yet. Share reproducible code or notes in a contribution. Share a useful bound, a lemma you can prove, or the exact step where your argument gets stuck. Use the posting template.

Source and history

Official source

initial import