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ACT Math: Plane Geometry Drill 4, Problem 1. What is the radius of the sphere?

ACT Math: Plane Geometry Drill 4, Problem 5. What is the height of the prism?

ACT Math: Plane Geometry Drill 5, Problem 5. How much material do you need to cover the entire tent?

SAT Math 6.4 Geometry and Measurement

Sure, Romeo and Juliet were a great pair, but they don't hold a candle to linear pairs. Find out more by clicking play.

This video explains the vertical angle theorem. Learn about supplementary angles, adjacent angles, and linear pairs, plus bungee jumping. Intersect...

Los cubos de hielo no son ruidosos generalmente...pero tienen un volumen de tipo diferente. Este video te enseñará cómo encontrar el volumen de...

Volume is crucial to our lives. It determines the amount of food we eat, the amount of fluid we drink, and hydraulics, just to to name a few. One o...

Haven't you always wondered how much cardboard it takes to encase a trunk warmer for your pet elephant?

SAT Math 11.1 Geometry and Measurement. If y equals 117°, what is the measure of x?

This video can run circles around other videos about circles. Sir Cumference, of Round Table fame, explains all the properties of… well, circles....

Time to learn about the area of a sector. And no, that's not the sector's bedroom with a bumper sticker on the door that reads, "GO AWAY."

SAT Math 8.2 Geometry and Measurement

Algebra I Drill 4, Problem 4. Which of the following could be an equation for line l?

Algebra I Drill 4, Problem 5. What is the slope of a line that is parallel to the graph of 8x + 4y = 5?

Who knew triangles had midsegments? We did.

Talk about math being applicable to real life.

ACT Math: Coordinate Geometry Drill 2, Problem 2. Which expression is depicted by the number line?

CAHSEE Math Mathematical Reasoning: Drill 2, Problem 5. Which of the following conclusions can be drawn based on the above information?

Mathematical Reasoning Drill 5, Problem 1. Which of the following could be the number of pieces the lasagna was cut into?

Mathematical Reasoning Drill 5 Problem 3. Which of the following could be the integer mentioned?

To prove lines are parallel, you need a third line. We at Shmoop (and the rest of the world) call it a transversal.

SAT Math 5.2 Geometry and Measurement

Algebra I Drill 4, Problem 5. What is the slope of a line that is parallel to the graph of 8x + 4y = 5?

SAT Math 4.3 Geometry and Measurement

“Polygon” - it’s not just something we say when our pet parrot escapes through the kitchen window. Curious to find out what angle these guys...

It's super useful to be able to find the distance around stuff. Like when you’re being pursued by authorities while running around the base of an...

CAHSEE Math: Mathematical Reasoning Drill 3, Problem 4. Which of the expressions gives the best estimate as to the length of this quadrilateral's p...

SAT Math 9.1 Geometry and Measurement

SAT Math 6.4 Geometry and Measurement

Verifying trig identities is important, especially when you're about to let one of them into the country—which is why they should keep their pass...

Mosquitos need their caffeine, just like the rest of us. Wouldn't think zipping around and stinging people all day long sap your energy?

Sine is the opposite over the hypotenuse; cosine is the adjacent over the hypotenuse; and tangent is the opposite side over the adjacent side....

Bien, tú no eres el único que cae completamente en el aburrimiento por un rato. Dos figuras geométricas dimensionales también. ¿Cómo ellos pu...

If you were looking for the trailer for the new Michael Bay movie, you've got the wrong number. Transformations are rotations, reflections, and tra...

Translations: now without the trans fat. Functions: now without the…fun? Wait, scratch that. Now with extra fun! Don’t believe us? There's only...

Sine is the opposite over the hypotenuse; cosine is the adjacent over the hypotenuse; and tangent is the opposite side over the adjacent side....

Someday you might be a big, fancy defense lawyer, and you'll have to prove that your client's triangle was congruent to the triangle in question. W...

ACT Math: Plane Geometry Drill 4, Problem 2. If x, y, and z are all integer values, which of the following cannot be the ratio of x:y:z?

We’ve got a problem. Actually, we’ve got a ton of them. Fortunately, they’re only geometric word problems, which really aren’t so bad. We�...

Measurement and Geometry Drill 5 Problem 1. A parcel of land measuring 64 square kilometers is equivalent to an area of how many square miles?

How do you figure out how long you have before the Galapagos Zombie Tortoises eat you? By using math, of course. If you can't solve this problem, w...