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3 years ago

Which side of DEF is the longest ? Please help

Mathematics

2 answers:

Minchanka [31]3 years ago

8 0

∠D= 87°, ∠E = 50°

Sum of three angles in a triangle is 180°

∠F = 180 - (∠D + ∠E)

∠F = 180 - (87 + 50)

∠F = 180 - 137

∠F = 43°

Side opposite to greatest angle is the longest side.

Among angle D, E and F, angle D is the greatest angle

So side opposite to angle D is the longest side which is EF

Option B is the answer

ivolga24 [154]3 years ago

3 0

I think its B.
It looks the longest.
Hope this helps!

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