Question

Explain these Mathematical problems by using variables
Area of square
Area of Triangle
Area of Circle
Average Speed

Answer 1

Answer:

Area of square sides square

Answer 2

Answer: area(square)=$a^2$, area(triangle)=$\frac{1}{2} bh$, area(circle)=$\pi r^{2}$, av. speed=$\frac{x}{t}\ m/s$

Explanation:

1. Area of square: let there be a square of side length $a$ then, area of square $A$ using the variable $a$ is given as,            $A=a^2$                                            
2. Area of Triangle: let there be a triangle of base length $b$ and height length (length of perpendicular from top vertex to the base side ) be $h$ then, area of triangle $A$ using variables $b\ and\ h$ is given as,       $A=\frac{1}{2} bh$    
3. Area of circle: let there be a circle of radius of length $r$ then area of circle $A$ using the variable $r$ is given as,      $A=\pi r^2$      
4. Average speed: let the distance covered by an object in time $'t'$ $sec$  be $x\ meters$ then, average speed $s$ using variable $t\ and\ x$  is given as, $s=\frac{x}{t}\ m/s$