# What is a shaded area in math?

## What is a shaded area in math?

The area of the shaded region is the difference between the area of the entire polygon and the area of the unshaded part inside the polygon. The area of the shaded part can occur in two ways in polygons. The shaded region can be located at the center of a polygon or the sides of the polygon.

### What is the formula of shaded part?

To get the area of the shaded region, subtract the area of the smaller circle from the area of the larger circle.

How do you calculate the area of a shaded region?

Calculate the area of both shapes. The area of a rectangle is determined by multiplying its length times its width. The area of a circle is Pi (i.e., 3.14) times the square of the radius. Find the area of the shaded region by subtracting the area of the small shape from the area of the larger shape.

How do you find the area of a shaded part of a circle?

Answer: The area of the shaded sector of the circle is A = (θ / 2) × r2 where θ is in radians or (θ / 360) × πr2 where θ is in degrees. Let’s see how we will use the concept of the sector of the triangle to find the area of the shaded sector of the circle.

## How do you shade 1/5 of a shape?

How to Shade Fractions of Shapes

1. Read the denominator, which is the number on the bottom of the fraction.
2. Divide the whole shape into this many equally sized parts.
3. Read the numerator, which is the number on the top of the fraction.
4. Shade in this many of the equally sized parts.

### How many parts are shaded?

There are three equal parts, giving a denominator of 3. Two of the parts are shaded, giving a numerator of 2. There are four equal parts, giving a denominator of 4….

Lessons on Fractions
1. Introduction to Fractions
10. Challenge Exercises
11. Solutions

What is the area of the shaded part of the rectangle?

The area of the shaded region is the difference between the areas of the rectangle and the square. The dimensions of the rectangle are 6 by 8 and so the area is 6 times 8 , that is 48 square units.

What is 2/3 of a shape?

It does not matter which parts are shaded in when shading a fraction of a shape. The fraction 2 / 3 simply tells us to shade any 2 of the 3 parts in. Two thirds of the rectangle is shaded.

The shade number of a lens indicates the amount of darkness provided by it and how effective it is at protecting the eye against intense light during arc welding or plasma arc cutting operations.

### How do you show 75 in a circle?

Explanation. Therefore to represent 75%, divide a circle into four equal parts and shade three.

How do you find the shaded area of a circle?

Answer: The area of the shaded sector of the circle is A = (θ / 2) × r2 where θ is in radians or (θ / 360) × πr2 where θ is in degrees.

How do you find the shaded part of a circle?

## How do you find area of a shaded sector of a circle?

The formula for sector area is simple – multiply the central angle by the radius squared, and divide by 2: Sector Area = r² * α / 2.

### How do you find the area with 4 different sides?

Area of quadrilateral = (½) × diagonal length × sum of the length of the perpendiculars drawn from the remaining two vertices.

How do you find the area of a shape with 4 different sides?

Use the following equation:

1. Area = side × side or A = s.
2. Example: If one side of a square has a length of 4 feet, (t = 4), then the area of this square is simply t2, or 4 x 4 = 16 square feet.

How do you find the number of shaded parts of a figure?

Step 1: Take a look at the given figure as a whole and identify the number of parts the figure has been divided into. Let the number of parts the figure has been divided into be {eq}x {/eq}. Identify the parts that have been shaded. Let the number of parts that have been shaded in the figure be {eq}y {/eq}