Find x in the following figure
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Answered by
1
Answer:
20•
Step-by-step explanation:
3x + 4x + 40 = 180 (sum of angle of triangle is 180° )
7x =140
x = 20
Answered by
2
Answer:
40+4x+3x=180
40+7x=180
7x=180-40
7x=140
x=140/7
x=20
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