3 years ago

Which reason justifies the last step in a proof that ∆DEF ≅ ∆DAB?

1 answer:

7 0

Hey there, Sheriawilright!

The correct answer should be C since we are given two sides AD is congruent to ED and D is the midpoint of Line BF meaning that BD and BF are the same. Also, it makes both lines make a vertical angle meaning they are the same. So we have two sides and an angle between, so the answer is Side Angle Side.

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A wheel has a diameter of 21 inches. <br><br> Approximately how far does it travel in 3 revolutions?

RideAnS [48]

So each 1 revolution it travels the distance around the rim of the wheele aka circumference
circumference=pi times diameter
diameter=21
circunference=pi times 21 or 21pi
so distance=number of revolutions times circunference
number of revolutions=3
subsitute

distance=3 times 21pi
distance=63pi

answer is 63pi
or aprox pi to 3.14 and do 63 times 3.14=197.82
aprox 197.82 inches

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3 years ago

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kenny6666 [7]

X=(-2-x)+6
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