7. We recall that in lectures we used the notation (PQR) to mean the area of triangle PQR. With this in mind, consider a triangle ABC. Let D be the midpoint of BC and let E be an arbitrary point inside the triangle ABD.

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7. We recall that in lectures we used the notation (PQR) to mean the area of triangle PQR. With
this in mind, consider a triangle ABC. Let D be the midpoint of BC and let E be an arbitrary point
inside the triangle ABD.
B
5) e
D
(a) Why is (ABC)= (AEB) + (AEC) + (BEC)?
Transcribed Image Text:7. We recall that in lectures we used the notation (PQR) to mean the area of triangle PQR. With this in mind, consider a triangle ABC. Let D be the midpoint of BC and let E be an arbitrary point inside the triangle ABD. B 5) e D (a) Why is (ABC)= (AEB) + (AEC) + (BEC)?
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