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15. In the diagram AB is parallel to CD.
Calculate the value of a.
NOT TO
SCALE

15. In the diagram AB is parallel to CD. Calculate the value of a. NOT TO SCALE-example-1
User GFu
by
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1 Answer

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Same-side interior angles, which are shown here, are supplementary, which means that they add up to 180 degrees.

5a + a = 180

6a = 180

a = 30 degrees

Hope this helps! :)

User Prashant Pugalia
by
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