All PSAT Math Resources
Example Questions
Example Question #1 : Acute / Obtuse Triangles
Two sides of an isosceles triangle are 20 and 30. What is the difference of the largest and the smallest possible perimeters?
Possible Answers:
15
30
The answer cannot be determined
10
0
Correct answer:
10
Explanation:
The trick here is that we don't know which is the repeated side. Our possible triangles are therefore 20 + 20 + 30 = 70 or 30 + 30 + 20 = 80. The difference is therefore 80 – 70 or 10.
All PSAT Math Resources
Popular Subjects
Reading Tutors in Seattle, GRE Tutors in Houston, SSAT Tutors in Atlanta, Statistics Tutors in Seattle, GRE Tutors in Philadelphia, Calculus Tutors in San Francisco-Bay Area, Computer Science Tutors in Houston, French Tutors in Los Angeles, Computer Science Tutors in New York City, ISEE Tutors in Denver
Popular Courses & Classes
SSAT Courses & Classes in Miami, GRE Courses & Classes in Philadelphia, LSAT Courses & Classes in San Diego, ACT Courses & Classes in Miami, GRE Courses & Classes in San Francisco-Bay Area, Spanish Courses & Classes in Denver, Spanish Courses & Classes in San Francisco-Bay Area, SSAT Courses & Classes in Boston, GRE Courses & Classes in Houston, GRE Courses & Classes in San Diego
Popular Test Prep
ACT Test Prep in Seattle, ISEE Test Prep in San Francisco-Bay Area, GRE Test Prep in Philadelphia, ACT Test Prep in Miami, SSAT Test Prep in Miami, ISEE Test Prep in Phoenix, LSAT Test Prep in Washington DC, GMAT Test Prep in Houston, SAT Test Prep in Boston, MCAT Test Prep in Atlanta