20,345
edits
Changes
Area
,no edit summary
<math>area = 17.5cm^2</math>
|}
==Key Stage 3==
===Meaning===
[[Area]] is the size of a surface.
===About Area===
: The [[unit]]s of [[area]] are [[Metres Squared|metres squared]] or [[Centimetres Squared|centimetres squared]].
===Equations===
====Area of a Rectangle====
<math>area = base \times height</math>
<math>a = b\timesh</math>
====Area of a Triangle====
<math>area = \frac{1}{2} \times base \times height</math>
<math>a = \frac{b \times h}{2}</math>
====Area of a Trapezium====
<math>area = \frac{1}{2} \times (shortside+longside) \times height</math>
<math>a = \frac{1}{2} \times (A+B) \times height</math>
====Area of a Circle====
<math>area = \pi \times (radius)^2</math>
<math>a = \pi r^2</math>