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tiana02q
06.05.2020 •
Mathematics
Help me please this is 7th grade math bless you❤️❤️✨
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Ответ:
Step-by-step explanation:
A=πr2=π·9^2≈254.469
lol I hope this
Ответ:
Possible coordinates of point F are (2,-1) and (6,3).
Step-by-step explanation:
Given two triangles ABC and DEF which are congruent.
we have to find the coordinates of point F while the other are given.
A(1,0), B(-1,2), C(2,3), D(5,0), E(3,2)
Let the coordinates of F are (a,b)
By distance formula,
∵ ΔABC and ΔDEF are congruent
∴
→ (1)
Now, we will find the value of a and b of system of equation using calculator and we get the coordinates are (2,-1) and (6,3)
Hence, possible coordinates of F are (2,-1) and (6,3).