The figure below shows a shaded circular region inside a larger circle:

A shaded circle is shown inside another larger circle. The radius of the smaller circle is labeled as r and the radius of the larger circle is labeled as R. On the right side of the image is written r equal to 2 inches and below r equal to 2 inches is written R equal to 5 inches.

What is the probability that a point chosen inside the larger circle is not in the shaded region?

Question

The figure below shows a shaded circular region inside a larger circle:

A shaded circle is shown inside another larger circle. The radius of the smaller circle is labeled as r and the radius of the larger circle is labeled as R. On the right side of the image is written r equal to 2 inches and below r equal to 2 inches is written R equal to 5 inches.

What is the probability that a point chosen inside the larger circle is not in the shaded region?

282006 · Answer

https://lee.flvs.net/webdav/assessment_images/educator_mjmath2_v14/mjmath2_segment2_part1_g15_c1.jpg

Kamauri · Answer

do u have any clue what it could be or how to solve it

282006 · Answer

no not really

282006 · Answer

84%
 50%
 42%
 16%

Narad · Answer

The probability of a point inside the larger circle but not in the shaded circle is
$$P=1- (\pi *r ^{2})/(\pi*R ^{2})=1-4/25=21/25=0.84= 84%$$

Kamauri · Answer

@Narad good job