1

Angles and triangles

Use angle rules to find what's missing.

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Angle relationshipsA few rules solve most angle problems.The Pythagorean theoremIn a right triangle, the squares of the legs add to the square of the hypotenuse.Unit checkSix mixed questions from this unit. Score 80% to finish it.

2

Area, circles and volume

Measure flat shapes and solids.

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Area of common shapesEach formula counts unit squares.Volume of solidsVolume is the area of the base times the height, for prisms and cylinders.Unit checkSix mixed questions from this unit. Score 80% to finish it.

3

Right-triangle trigonometry

Use sine, cosine and tangent.

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Sine, cosine and tangentLabel the sides from the angle's point of view.Find missing sidesPick the ratio that links what you know to what you want.Unit checkSix mixed questions from this unit. Score 80% to finish it.