Question

What is area? and what is the area of square area of tringle area of rectangle

Answer 1

Answer on Question #43844 – Math – Geometry

What is area? What is the area of a square, area of a triangle and area of a rectangle?

Solution:

Area is the size of a surface. In technical terms, area means the number of square units that can fit inside the object whose area you are looking to find.

Area of a square.

Given a square with side length $a$:

The formula for the area is: $A = a^2$

Area of a rectangle.

Given a rectangle with length $b$ and width $a$:

The formula for the area is: $A = ab$

Area of a triangle.

Given a triangle with base length $a$ and height $h$:

The formula for the area is: $A = \frac{1}{2}ah$

Given a triangle with sides $a, b$ and the angles $C$:

The formula for the area is: $A = \frac{1}{2} ab \sin C$

Given a triangle with sides $a, b$ and $c$ :

The formula for the area is: $A = \sqrt{p(p - a)(p - b)(p - c)}$

Where $p = \frac{a + b + c}{2}$

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