Similar triangle basics | Similarity | Geometry | Khan Academy

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Introduction to what it means for triangles to be similar

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.

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And, the award of most used word in this geometry playlist goes to the word "color."👏👏

shubhamchoudhary

i was having problems with similarity cuz that portion wasnt covered in my textbook and Mr.Khan saves the day again

bduttay

My teacher is making me watch this in quarantine

andrewmurtagh

Thanks for the info. I closed out of Study Island and restarted because I was doing bad on Similar Figures :P

XxNickxX

is helping me a lot, i was thinking like what why they are similar though they have different measures and know i know the ans, thank you khan academy 🤍🤍🤍🤍🤍

أميرالبلابل

Why are the lessons in this series nicely numbered in the overarch Geometry course but the numbers disappear as soon as the individual lessons are opened?

zack_