Home » K-12 Benchmarks » Postsecondary Assignments » College Algebra and Calculus

Sample Task #10

Similar Triangles
(Northern Kentucky University)
In the right triangles ABC and CDE shown below, AB has a length of 8 feet, BE has a length of 5 feet and CE has a length of 7 feet. What is the length of DE? Round your answer to two decimal places.

Use similar triangles:
.

 
 
Closing the Expectations Gap
Common Concerns
Outreach Tools
Math Works
What People Are Saying
ADP Action Agenda
ADP Network Services
ADP Benchmarks – End of High School
English Benchmarks, Grades 4 – 12
Mathematics Benchmarks, Grades K – 12
Workplace Tasks
Postsecondary Assignments
Research and Methodology
Alignment Services
Subscribe to Perspective
Current E-Newsletter
E-Newsletter Archive
National Reports
State Reports
Summits
Current Press Releases
Archived Press Releases
Achieve in the News
Achieve Initiatives
Board
Staff
Contributors
Job Opportunities
Contact Us
Summits
Site Map