Revise trigonometric ratios of sine, cosine and tangent and calculate angles in right-angled triangles with this Bitesize GCSE Maths Edexcel guide.

Bing’s geometry calculator works with specific geometry-related searches and solves equations for up to 21 different geometric figures.

Circle theorems - Higher - Edexcel Circles have different angle properties described by different circle theorems. Circle theorems are used in geometric proofs and to calculate angles.

Math 101 for Pilots From calculating reciprocal course to stabilized descents, here's a primer of basic mathematics pilots need to know.

Keep an eye out for math concepts Encourage your child to spot examples of some of the math concepts they are learning about. See how many right angles or right triangles your child can spot.

Figuring out a word problem. Calculating area and perimeter. Finding the measure of an unknown angle. All these tasks, and more, draw on an essential foundation of math knowledge, said Brian ...