Shown is a trianglex + 202x-202x 40Work out the value of
1 answer:
Answer:
x = 44
Step-by-step explanation:
The sum of the 3 angles in a triangle = 180°
Sum the 3 angles and equate to 180
x + 20 + 2x - 40 + 2x - 20 = 180, that is
5x - 40 = 180 ( add 40 to both sides )
5x = 220 ( divide both sides by 5 )
x = 44
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