Geometry: Difference between revisions
→Area and perimeters: add triangle |
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<math>A = \pi r^2</math> | <math>A = \pi r^2</math> | ||
== Perimeter of a triangle == | |||
<math>P = a + b + c</math> | |||
== Area of a triangle == | |||
<math>A = \frac{1}{2} bh</math> | |||
= Volume and surface area = | = Volume and surface area = | ||