2 years ago

Hi can someone help me with this

Mathematics

1 answer:

WINSTONCH [101]2 years ago

5 0

Answer:

86 degrees

Step-by-step explanation:

180 - (74 + 20) = 86

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WARRIOR [948]

Step-by-step explanation:

You have to use logarithms.

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2 years ago

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Can you prove that DEF = HGF.!? Justify your answer.

frosja888 [35]

Step-by-step explanation:

$In \: \triangle DEF \: \& \: \triangle HGF \\ EF \: \cong \: GF...(given) \\ \angle EFD \cong \angle GFH \\ (vertically \: opposite \: angles) \\ \ DF \: \cong \: HF...(given) \\ \therefore \: \triangle DEF \cong \triangle HGF \\ (By\: SAS \:criterion\: of \:congruence)$