4. Here is a diagram of Mrs. Tina's lawn.
She cuts the grass using a mower plugged in to a socket 18 cm
at point E.
The cable can reach up to 22 meters from E.
Fis the furthest point the mower can reach on edge CD.
С.
26 cm
(a) Which of the following is a fact that you can use to calculate the length of DF?
a) DF = DE + EF b)
c) DF = VDE? + EF2
DE 18
DF
26
d) DE? + DF2 = 222
e) DE + DF + EF = 180
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