All ACT Math Resources
Example Questions
Example Question #531 : Plane Geometry
A circle has a radius of . What is the ratio of its circumference to its area?
Possible Answers:
Correct answer:
Explanation:
1. Find the circumference:
2. Find the area:
3. Divide the circumference by the area:
Example Question #532 : Plane Geometry
How far must a racehorse run in a lap race where the course is a circle with an area of ?
Possible Answers:
Correct answer:
Explanation:
To find the answer, we need to first find the circumference of the circle then mulitply that by 4 because the racehorse is running 4 laps.
We know that the area of the circle is . We can then find the radius.
Because , our diameter is 12.
We can now find the circumference.
Multiply the circumference by 4 (our racehorse is running 4 laps) to find the answer.
Dejuan
Certified Tutor
Certified Tutor
University of Illinois at Urbana-Champaign, Bachelor of Science, Electrical Engineering.
All ACT Math Resources
ACT Math Tutors in Top Cities:
Atlanta ACT Math Tutors, Austin ACT Math Tutors, Boston ACT Math Tutors, Chicago ACT Math Tutors, Dallas Fort Worth ACT Math Tutors, Denver ACT Math Tutors, Houston ACT Math Tutors, Kansas City ACT Math Tutors, Los Angeles ACT Math Tutors, Miami ACT Math Tutors, New York City ACT Math Tutors, Philadelphia ACT Math Tutors, Phoenix ACT Math Tutors, San Diego ACT Math Tutors, San Francisco-Bay Area ACT Math Tutors, Seattle ACT Math Tutors, St. Louis ACT Math Tutors, Tucson ACT Math Tutors, Washington DC ACT Math Tutors
Popular Courses & Classes
SSAT Courses & Classes in Houston, GMAT Courses & Classes in Philadelphia, GRE Courses & Classes in Washington DC, LSAT Courses & Classes in San Francisco-Bay Area, MCAT Courses & Classes in Seattle, MCAT Courses & Classes in New York City, ACT Courses & Classes in Washington DC, MCAT Courses & Classes in Los Angeles, LSAT Courses & Classes in Washington DC, GRE Courses & Classes in Houston