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vladimir1956 [14]
4 years ago
14

If ABCD is a parallelogram find the value of unknown size of angle ​

Mathematics
1 answer:
fiasKO [112]4 years ago
3 0

b=7×10(opposite angle of parallelogram)

b=70

3x+10+b=180(cointerior angles)

3x=10

x=33.33

a+70=180(cointerior angles)

a=110

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