## How do you make a wooden trapezoid?

Quote from the video:

Quote from Youtube video: *After trimming off one side of each piece I used a stop block to cut the opposite sides of the boards. This. Way I could get repeated cuts at the exact same length.*

## How do you make a trapezoid box?

Quote from the video:

Quote from Youtube video: *And we'll start with the colored side down next we'll Valley fold in half along the vertical. So I'm going to bring the right edge over to line up with the left edge.*

## How do you cut a trapezoid shape?

Quote from the video:

Quote from Youtube video: *What. We can do is we could take this trapezoid. And cut it into two triangles by going from one corner. Or one vertex to the other one of course mine's not gonna be perfect.*

## What angles are in a trapezoid?

Like all other quadrangles, **the sum of angles in a trapezoid is 360 degrees (or 2π radians)**. Since they have a pair of parallel sides, the trapezoid has an additional condition. The pair of angles along one of the legs are supplementary angles, which means their sum must be equal to 180 degrees (or π radians).

## How do you find the sides and angles of a trapezoid?

Quote from the video:

Quote from Youtube video: *That we're missing all we have to do is set up an equation where we take whatever it is for angle one and add whatever it is for angle two to add up to equal on an eighty degree.*

## What are the rules for a trapezoid?

**Properties of Trapezoid**

- The bases (the top and bottom) are parallel to each other.
- Opposite sides of a trapezoid (isosceles) are of the same length.
- Angles next to each other sum up to 180°
- The median is parallel to both the bases.
- Median’s length is the average of both the bases i.e. (a +b)/2.

## How do you find the sides of a trapezoid?

Quote from the video:

Quote from Youtube video: *Right your bases are parallel. And then if you have a mid segment that mid segment is parallel as well.*

## What is a trapezoid shape?

A trapezoid is **a quadrilateral with one pair of opposite sides parallel**. It can have right angles (a right trapezoid), and it can have congruent sides (isosceles), but those are not required.

## How do you measure a trapezoid?

Quote from the video:

Quote from Youtube video: *And a calculator step 1 add the lengths of the two parallel sides of the trapezoid. Step 2 find the height of the trapezoid. Using a calculator multiply. The sum of the lengths by the height.*

## What measurements are needed to find the area of a trapezoid?

What is the area of the trapezoid? Explanation: To find the area of a trapezoid, **multiply the sum of the bases (the parallel sides) by the height (the perpendicular distance between the bases), and then divide by 2**.

## What is trapezoidal rule in surveying?

THE TRAPEZOIDAL RULE

**To the sum of the first and last ordinate, twice the sum of intermediate ordinates is added**. This total sum is multiplied by the common distance. Half of this product is the required area.

## Which of the following is trapezoidal formula use for calculation of earthwork?

2) Trapezoidal formula:

**V=L/2(A1+A2)** or V=LAm Am=mean sectional area.

## Which instrument can be used for measuring area when the shape of boundaries are very irregular?

Planimeter

**Planimeter** is an instrument used in surveying to compute the area of any given plan. Planimeter only needs plan drawn on the sheet to calculate area. Generally, it is very difficult to determine the area of irregular plot. So, by using planimeter we can easily calculate the area of any shape.