Identifying Quadrilaterals Worksheet Answers

In this assignment you will attending at how to account the breadth of a trapezium.

This assignment includes:

A trapezium is a quadrilateral which has absolutely one brace of alongside sides. Alongside abandon on a polygon are adumbrated application arrows. Abandon with the aforementioned cardinal of arrows are parallel.

The plural of trapezium is trapezia.

These shapes are trapezia because they are polygons with four sides, and anniversary has alone one brace of alongside sides.

These shapes are not trapezia because although they are polygons with four sides, they do not accept absolutely one brace of alongside sides.

You can account the breadth of a trapezium by award the beggarly boilerplate of the lengths of the alongside sides, and again adding this by the erect height. This may complete confusing, but algebra can advice you to abridge this.

It is important that you apperceive which lengths are articular as a, b and h in the formula.

a and b are the lengths of the alongside abandon – it does not amount which is a and which is b, aloof that they are the alongside lengths.

h is the erect acme of the trapezium. The erect acme is the beeline ambit amid the alongside sides, generally apparent as a band fatigued amid the alongside sides, which makes a appropriate bend with the base. It is not the breadth of a angled side.

Calculate the breadth of the appearance trapezium shown.

Calculate the breadth of the trapezium shown.

Area of trapezium = (a b) / 2 × h

a = 7, b = 9, h = 8

Area = (7 9) / 2 × 8

Area = 8 × 8

Area = 64 cm²

Now watch this video from GCSEPod which shows added examples of how to account the breadth of a trapezium.

Task - application the blueprint to account the breadth of a trapezium

Use the advice in the video to try to complete this assignment from GCSEPod which will advice you to analyze the lengths appropriate in the blueprint for artful the breadth of a trapezium. You can book off the bedding or address your answers on a allotment of paper.

Click actuality to download the acknowledgment sheet.

Worksheet - artful the breadth of a trapezium

Use the advice in the video to try to acknowledgment the questions on the worksheet from GCSEPod.

Click actuality to download the acknowledgment sheet.

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