<h3>Answer:</h3>
168 cm²
<h3>Explanation:</h3>
... ADBC = (1/2)AABC because DC is a median of ∆ABC.
... ADEC = ADEB = (1/2)ADBC because DE is a median of ∆BDC.
... ADEF = (1/2)ADEB because DF is a median of ∆BDE.
The given area is the sum of two of the areas described above:
... ADCF = ADEC + ADEF
... ADCF = (1/2)ABDC +(1/2)ADEB . . . . substitute from above
... = (1/2)(1/2)AABC + (1/2)(1/2)(1/2)AABC . . . . more substitution
... = (3/8)AABC
Multiplying by 8/3 gives ...
... AABC = (8/3)ADCF = (8/3)×(63 cm²)
... AABC = 168 cm²
Answer:
14 and 9
Step-by-step explanation:
Y values are always the second number in the parenthesis. The X value is the first one. I like to think of Y being dependent on X, so X goes first, then Y.
Answer:
89m
Step-by-step explanation:
First, find the area of the rectangle (ignoring the missing triangle inside). The area of the rectangle is its base times its height, which is 8*13=104.
Next, find the area of the triangle. The area of the triangle is its base times height, divided by two.
The width of one side of the rectangle is 13, and the width of the side of the rectangle is 8 (4 + 4). Therefore, subtract 8 from 13 and the missing section in the side of the rectangle is 5. 5 is equal to the base of the triangle.
The height of the triangle is given, which is 6. As stated before, the area of a triangle is its base times height divided by two, which is 5*6/2 in this case. The area of the triangle is equal to 15.
Now, subtract the area of the triangle from the area of the rectangle. 104-15=89.
Its B, C, E, F because for B the neg reciprocal of 1 is -1
Answer:
Step-by-step explanation:
Divide by 2, then subtract the length.
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A script L is sometimes used to avoid confusion with I (eye) or 1 (one). It can look like an "e".