Khan Academy

Pythagorean theorem intro problems (K-A)

Use Pythagorean theorem to find area of an isosceles triangle (K-A)

Distance formula Notes (K-A)

Distance formula review (K-A)

Distance formula Video (K-A)

Finding distance with Pythagorean theorem (K-A)

Pythagorean theorem in 3D (K-A)

Pythagorean theorem word problem: carpet (K-A)

Pythagorean theorem word problem: fishing boat (K-A)

Another Pythagorean theorem proof (K-A)

Bhaskara's proof of the Pythagorean theorem (K-A)

Garfield's proof of the Pythagorean theorem (K-A)

Pythagorean theorem proof using similarity (K-A)

Congruent shapes & transformations (K-A)

Dilating shapes: shrinking (K-A)

Non-congruent shapes & transformations (K-A)

Side lengths after dilation (K-A)

Similar shapes & transformations (K-A)

Dilating points (K-A)

Dilating shapes: expanding (K-A)

Dilating shapes: shrinking-video (K-A)

Dilations and properties (K-A)

Dilations: center (K-A)

Dilations: scale factor (K-A)

Identifying symmetrical figures (K-A)