Reviewing the last problem from the previous video because he feels that he "rushed it," Sal again explains the concept of ratios as it applies to problem 6 on the practice SAT (page 472 in The Official SAT Study Guide). Additional problems in this presentation deal with square roots, geometric triangles, and exponents. The video details the "slow way" versus "the fast way" to arrive at the same answer for number 9.

Concepts

radicals, angles, exponents, square roots, triangles

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Additional Tags

angles, exponents, radicals, square roots, triangles, math

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Classroom Considerations

• This video is hosted on YouTube