50 ft Your yard is in the
shape of a trapezoid.
You
go
to the store to
buy fertilizer and the
salesman asks for the
your lawn. What
tell him?
40 ft
30 ft
area of
65 ft
do you
[?] ft2
Hint: The formula for the area of a trapezoid is: (b1 b2). h
Enter

If the angle bisectors of a pair of opposite angles of a quadrilateral are the opposite sides of a parallelogram formed by the two angle bisectors and two sides of the quadrilateral, is the quadrilateral always a parallelogram? explain your answer.

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Why is 4.125 + the square root of 3 irrational