Question

formula of triangle
​

Answer 1

Triangle Formula. A triangle is a polygon with three edges and three vertices. It is one of the basic shapes in geometry

Answer 2

Question:

To write formulas for area of triangle

• Area of triangle :

$\frac{1}{2}\times b \times h$

or

herons formula

$\sqrt{s(s-a)(s-b)(s-c)}$

where s = $\frac{1}{2} \:\textsf{perimeter}$

s = $\frac{a+b+c}{2}$

• Perimeter of triangle :

3s = 3(sides)

Extra information:

• Area of rectangle:

l x b = Length x Breadth

• Perimeter of rectangle:

2(l+b)

where l is length and b is breadth

• Area of square:

s x s = side x side

• Perimeter of square :

4s

where s is side

• Area of circle:

πr²

Where r = radius

• Perimeter or circumference of circle :

2πr

Where r = radius