redburd redburd

15-04-2021
Mathematics

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Find the value of a in the diagram below:
20
40°
200°

Find the value of a in the diagram below 20 40 200 class=

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katiex28 katiex28

15-04-2021

50

angles in triangle =180
180-40=140
the other angle is a right angle so 90°
140-90=50

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