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DiKsa [7]
3 years ago
14

I need help with 25.

Mathematics
1 answer:
noname [10]3 years ago
6 0

Sum of linear pair of angles = 180°

so

<EFG + <GFH = 180°

2n + 21 + 4n + 15 = 180°

6n + 36 = 180°

6n = 144

n = 24

<EFG = 2(24) + 21 = 69°

<GFH = 4n + 15 = 4(24) + 15 = 111°

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See attachment for complete question

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