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24.03.2020 •
Mathematics
I need help please im confused
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Ответ:
Im not One hundred percent sure but i think its 9.79.
Step-by-step explanation:
Ответ:
solution given:
let's see only in a right-angled triangle Δ ACD.
AC=3 units
AD=5 units
since Δ ACD is a right-angled triangle. It satisfies Pythagoras law
25=9+
Now
Area of rectangle Δ ACD=
similarly,
since AB=CE=2.4 units
Δ ACE is a right-angled triangle. It satisfies Pythagoras law.
now
area of trapezoid=area ofΔACD+Area of ΔABC
=6+