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horsedoggal1234
28.10.2019 •
Mathematics
Asquare is constructed on side ad of quadrilateral abcd such that fa lies on ab, as shown in the figure.
if ad : ab = 2 : 5, the coordinates of point f are point e has the coordinates (2.8, -3), and the coordinates of point d are
f options- (4.4,-4.6) , (4.4,-3.6) , (4.6,-4.6) , (4.6,-3.6)
d options- (4.4,-2.4) , (4.4,-1.4) , (4.6,-2.4) , (4.6,-1.4)
bruh im struggling
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Ответ:
The co-ordinates of F are (4.4, -4.6) and the co-ordinates of D are (4.4, -1.4).
Step-by-step explanation: Given that a square is constructed on side AD of quadrilateral ABCD such that FA lies on AB as shown in the figure. The co-ordinates of A are (6, -3) and the co-ordinates of B are (10, 1).
Also, AD : AB = 2 : 5 and the co-ordinates of the point E are (2.8, -3).
We are to select the correct co-ordinates of the points F and D.
Let, (a, b) are the co-ordinates of F and (c, d) are the co-ordinates of D.
Since ADEF is a square, so we have
AD = DE = EF = FA.
Given that
AD : AB = 2 : 5, so FA : AB = 2 : 5.
That is, \left(\dfrac{c+4.4}{2},\dfrac{d-4.6}{2}\right)=\left(\dfrac{2.8+6}{2},\dfrac{-3-3}{2}\right)
We have, after applying the internal division formula that
So, the co-ordinates of F are (4.4, -4.6).
Now, since ADEF is a square, and the diagonals of a square bisect each other.
So, the mid-points of both the diagonals are same.
That is,
So, the co-ordinates of D are (4.4, -1.4).
Thus, the co-ordinates of F are (4.4, -4.6) and the co-ordinates of D are (4.4, -1.4).
Ответ:
F is (4.4, -4.6) and D is (4.4, -1.4).
Hope this helps :)
Step-by-step explanation:
Ответ:
A. Angles 1 and 5 are congruent corresponding angles
Step-by-step explanation: