arbab278 arbab278

11-05-2020
Mathematics

contestada

b) When ABCD is drawn to scale, would
the lines AD and BC be parallel or not?
You must justify your answer without
using a scale drawing.

I want second one

b When ABCD is drawn to scale wouldthe lines AD and BC be parallel or notYou must justify your answer withoutusing a scale drawingI want second one class=

Respuesta :

11-05-2020

Let's check the answer for (a) first.

x + 2x + 3x + 90 = 360

6x = 270

x = 270/6 = 45

That's correct.

(b)

We have A=2x=90°, B=3x=135°, C=x=45°

Since A and D are both 90°, we get parallel segments, AD || BC.

Answer: Yes, AD || BC

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