SAT Practice Test 1: Section 8 — Question 13 (Math)


Explanations for Official SAT Guide (2nd edition) from

Link to purchase the book:

— Our SAT Prep Product:

Studying online with Magoosh is different from ordinary online SAT prep methods. Magoosh has over 400 sample SAT questions written by SAT experts, categorized by subject and problem type so that you can easily customize your study session to suit your personal strengths and weaknesses.

Detailed video explanations come with EVERY question to make sure you fully understand the material. Built-in timers, customizable practice exams, ease of use, and accessibility make Magoosh both more time efficient AND more cost efficient than traditional test prep methods.

Try us out! Start now at

SAT is a registered trademark of The College Board. This video is not endorsed or approved by The College Board.
SAT Practice Test 1: Section 8 — Question 13 (Math)

The Pythagorean Theorem Intro | Right Triangles And Trigonometry | Geometry | Khan Academy


Introduction to the Pythagorean Theorem

Practice this lesson yourself on KhanAcademy.org right now:

Watch the next lesson:

Missed the previous lesson?

Geometry on Khan Academy: We are surrounded by space. And that space contains lots of things. And these things have shapes. In geometry we are concerned with the nature of these shapes, how we define them, and what they teach us about the world at large–from math to architecture to biology to astronomy (and everything in between). Learning geometry is about more than just taking your medicine (“It’s good for you!”), it’s at the core of everything that exists–including you. Having said all that, some of the specific topics we’ll cover include angles, intersecting lines, right triangles, perimeter, area, volume, circles, triangles, quadrilaterals, analytic geometry, and geometric constructions. Wow. That’s a lot. To summarize: it’s difficult to imagine any area of math that is more widely used than geometry.

About Khan Academy: Khan Academy is a nonprofit with a mission to provide a free, world-class education for anyone, anywhere. We believe learners of all ages should have unlimited access to free educational content they can master at their own pace. We use intelligent software, deep data analytics and intuitive user interfaces to help students and teachers around the world. Our resources cover preschool through early college education, including math, biology, chemistry, physics, economics, finance, history, grammar and more. We offer free personalized SAT test prep in partnership with the test developer, the College Board. Khan Academy has been translated into dozens of languages, and 100 million people use our platform worldwide every year. For more information, visit join us on Facebook or follow us on Twitter at @khanacademy. And remember, you can learn anything.

For free. For everyone. Forever. #YouCanLearnAnything

Subscribe to Khan Academy’s Geometry channel:

Subscribe to Khan Academy:
The Pythagorean Theorem Intro | Right Triangles And Trigonometry | Geometry | Khan Academy