2 years ago

How do i do this? i need some help

Mathematics

1 answer:

myrzilka [38]2 years ago

6 0

Answer:30,6

Step-by-step explanation:

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An isosceles triangle’s altitude will bisect its base. Which expression could be used to find the area of the isosceles triangle

omeli [17]

Answer:

$\dfrac{\sqrt{40}\cdot \sqrt{40}}{2}$

Step-by-step explanation:

The length of the base is the distance between the points 4+2i and 10+4i, so

$\text{Base}=|10+4i-(4+2i)|=|10+4i-4-2i|=|6+2i|=\sqrt{6^2+2^2}=\\ \\=\sqrt{36+4}=\sqrt{40}$

The middle point of the base is placed at point

$\dfrac{4+2i+10+4i}{2}=\dfrac{6i+14}{2}=7+3i$

The length of the height is the distance between the points 5+9i and 7+3i

$\text{Height}=|5+9i-(7+3i)|=|5+9i-7-3i|=|-2+6i|=\sqrt{(-2)^2+6^2}=\\ \\=\sqrt{4+36}=\sqrt{40}$

So, the area of the triangle is

$A=\dfrac{1}{2}\cdot \text{Base}\cdot \text{Height}=\dfrac{\sqrt{40}\cdot \sqrt{40}}{2}$

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2 years ago

Lines AB and CD are parallel. If the measure of angle

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Answer:

Angles W, Z, M, P are 111°

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3 years ago

Length of 8 in, width of 4 in, height of 2 1/4 in,

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Step-by-step explanation:

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Rou<br>Round 66.681 to the nearest ten thousand.

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this only goes to the thousanths.

Step-by-step explanation:

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Are these triangles congruent ?

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Answer:

yes

Step-by-step explanation:

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