## Calculator

### Enter 2 values

 right-angled leg (a) = right-angled leg (b) = hypotenuse (c) = alpha (α) = °rad beta (β) =
Round to decimal places.
 Area A = Perimeter P =

## Right-Angled Triangle

A right-angled Triangle is a triangle that has one angle that measures 90°. The side that opposite from the 90° angle is the longest side of the triangle, we call this hypotenuse and usually referred with variable c. The other side of the right-angled Triangle commonly referred with variable a and b. The sum of angles in the Right-angled Triangle is 180°.

## The standard formula to count the Area of Right-Angled Triangle

A= ab/2
A = area
a = side of the triangle
b = shortest side of the triangle

## The standard formula to count the Perimeter of Right-Angled Triangle

P= a+b+c
P = perimeter
a = side of the triangle
b = shortest side of the triangle
c = hypotenuse of the triangle

## The Instruction and How to use the calculator online to count the Area and Perimeter of Right-Angled Triangle

1. First, input 2 values between edges(a, b) or edges (c) with alpha / beta angle in the right-angled triangle
2. Next, you can choose what decimal places you need. It can 1 or 2 or whatever you want.
3. And then, click “Calculate Button” and the answer (Perimeter and Area) will automatically appear.
4. To count another number, just repeat the first step.

## Example of the usage of calculator online to count the Area and Perimeter of Right-Angled Triangle

1. Example, enter “3” in “a”, and “4” in “b” of the right-angled triangle.
2. Then click enter or “Calculate” button.
3. You will find the answer right there on the Area A column and Perimeter P column. The area is 6.00 and the Perimeter is 12.00.

Categories: Area and Perimeter