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Ne4ueva [31]
3 years ago
12

What is the measure of DEF?

Mathematics
1 answer:
Tems11 [23]3 years ago
5 0

The measures of triangle def is ,

78+x+x=180

78+2x=180

2x=180-78

2x=102

x=102÷2

x=51

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2 years ago
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3 years ago
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