zackinator4894
25.02.2020 •
Mathematics
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Answers on questions: Mathematics
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Ответ:
P=4.5
Step-by-step explanation:
Area of DFH is area of GFD minus area of GHD.
Area of GHD:
GH^2=5^2-3^2=16
GH=4
P1=4*3/2=6
Area of GFD:
P2=7*3/2=10.5
Area of DFH
P=P2-P1=10.5-6=4.5
Ответ: