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sergiy2304 [10]
4 years ago
12

ABC is an eqilateral triangle with sides 10cm find the length of the prependicular from A to BC​

Mathematics
1 answer:
il63 [147K]4 years ago
7 0

All sides are equal in an equilateral triangle and the perpendicular bisects the side too.

so BC will be bisected and the segments be 5 each.

you can use Pythagoras theorem to find the altitude length, hypotenuse will be one side of the triangle.

5^2+h^2=10^2

$h^2=100-25=75$

$h=\sqrt{75}=5\sqrt3$

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Answer:

9 units

Step-by-step explanation:

Calculate the absolute value of the difference, that is

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3 years ago
Use appropriate tools . How can you use a graph to determine that a relationship is not a function ?
sergey [27]

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by showing dots and correlations in a graph which will have an estimated slope, while not a definite one

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3 years ago
Triangle EFG is dilated by a scale factor of 3 centered at (0, 1) to create triangle E'F'G'. Which statement is true about the d
lesya [120]

Answer:

segment EH and segment E prime H prime both pass through the center of dilation.  

Step-by-step explanation:

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After dilation, H' is placed at (0,1) because it coincides with the center of dilation

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4 0
3 years ago
[x÷(y–1)](−4)–[xy+(−3)]÷(−1) if x=−5, y=−2
IrinaK [193]
The result is 1/3.

_____
The first attempt in the attached picture has parentheses in the wrong place for the second term. This simplifies to
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5 0
3 years ago
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DedPeter [7]

Answer:

<em>$83.69</em>

Step-by-step explanation:

Given the following

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Total cost of brunch = $83.69

<em>Hence the total cost of her brunch is $83.69</em>

7 0
3 years ago
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