Calculating the area of ​​a geometric figure has never been easier! Discover tips to avoid making mistakes and calculate the ...

Polygons are multi-sided shapes with different ... The perimeter of a 2D shape is the total distance around the outside of the shape. The area of a 2D shape is the space inside the shape.

A cylinder is not a prism because the circle is not a polygon. Image caption, The total surface area of a prism is made up of the areas of the two end faces and the rectangles that join them.

The sides of the rectangle are therefore h and 2πr. The area of each of the two circles is \(\pi r^2\)and the area of the rectangle is \(2 \pi r \times h\). The surface area of a cylinder is the ...

It may be useful to refer to M1 properties of angles; M1 properties of 2D shapes and M5 Polygons if necessary. The sum of the angles inside any polygon can be found by spitting the polygon into ...

This fact is a more specific example of the equation for calculating the sum of the interior angles of a polygon: \(\text {Sum of interior angles = (n – 2)} ~\times~180^\circ\) where \(\text{n}\) ...