Discusses the properties and types of triangles, explaining that a triangle is a closed figure with three sides and angles. It categorizes triangles into equilateral, isosceles, scalene, obtuse, right ...
\(\text {Area of a triangle =}~\frac{1}{2} \times \text {base} \times \text {height}\) ...
The area of a kite is found in the same way as a rhombus, that is by splitting it into two triangles.