A line segment from a vertex to the midpoint of the opposite side is a "median". A median divides the area of the triangle in half, as it divides the base in half without changing the altitude.
AAMC is half AABC. AADC is half AAMC, so is 1/4 of AABC. (By the formula for area of a triangle.)
ABMC is half AABC. ABMD is half ABMC, so is 1/4 of AABC. (By the formula for area of a triangle.)
Then, AADC = 1/4 AABC = ABMC, so AADC = ABMC by the transitive property of equality.
Step-by-step explanation:
1.
a) yes
b) no
c) yes
d) no (not completely sure on this one)
2. same; vary; variability; answers; predictions
The decimal of 2.1 is greater than 2.0 but less than 2.42
Answer:
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Step-by-step explanation: