Find measure of complementary angles | Angles and intersecting lines | Geometry | Khan Academy

In this example, let's put some Algebra to work to find the measure of two angles whose sum equals 90 degrees, better knows as complementary angles.

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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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[xitsjinxbtwx]

Not too sure if you explained it wrong(no offense) or if my equation in the book is wrong, but this is not adding up. I did every step perfectly👐

[pedrocastaneda]

Thanks mate hard to remember some of the math after spring break

[noodlesofsadness]

sooo....like if I wanna own a coffee shop when I grow up I need to know this ?

[montanagates]

Thank you so much this was so helpful! I've been struggling with this for days!

[tyrell.m]

The measure of angle A is 4° greater than the measure of Angle B.The two angles are complimentary.Find the measure of each angle. Can you guys help me with this I know that complimentary angles = 90°?

[navouu]

For the last pert you could’ve said just plug it in.

[jacobgann]

hurp shnortlenips Someone who is a genus and wants to help other people learn math.  If you don't appreciate it, get a life and go elsewhere.