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Romashka-Z-Leto [24]
3 years ago
14

How do you calculate the area of triangle DEF?

Mathematics
2 answers:
cricket20 [7]3 years ago
8 0
First you need to solve for angle F then you can use 1/2acSinB. If you haven't done this you can also use the Pythagoras theorem and solve for the unknown side once you do that you can just use 1/2 b*h
Kazeer [188]3 years ago
4 0
Area equals 1/2  ( base times height )
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