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Find the perimeter of this trapezium.

Find the perimeter of this trapezium.-example-1
User Labyrinth
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Formula :

Perimeter of Trapezium = sum of all sides

AB + BD + EC + BC [Refer to the attachment]

AB = 14 cm

EC = 6 cm

BD = 8 cm

Let's find the length of side BC

In right angle triangle , BDC

EC = 14 cm

AB = 6 cm

DC = EC - AB

= 14 - 6

= 8 cm

According to Pythagoras theorem,

BC² = DC² + BD²

BC² = 8² + 8²

BC² = 64 + 64

BC = √128

BC = 11.31 cm

Perimeter = sum of all sides

= 14 + 6 + 8 +11.31

= 20 + 8 + 11.31

= 28 + 11.31

= 39.21 cm (Answer)

Find the perimeter of this trapezium.-example-1
User Larry Battle
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7.9k points

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