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3 years ago

Help me i need help please 11.

Mathematics

1 answer:

SVETLANKA909090 [29]3 years ago

8 0

Answer:

its rational

Step-by-step explanation:

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Find the length of the arc in terms of pi

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Solution,

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4 years ago

Find the perimeter of quadrilateral ABCD with vertices A(-2,-2), B(-1,3),

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Answer:

Step-by-step explanation:

Step one

given the coordinates

ABCD with vertices A(-2,-2), B(-1,3), C(5, 3), and D(4, -2)

AB=(-2,-2),(-1,3)

BC=(-1,3), (5, 3)

CD=(5, 3),(4, -2)

DA=(4, -2),(-2,-2)

The distance between points AB=

$AB= \sqrt (x_2-x_1)^2+(y_2-y_1)^2$

$AB= \sqrt (-1+2)^2+(3+2)^2\\\\AB= \sqrt 1^2+(5)^2\\\\AB= \sqrt26\\\\AB=5.1$

The distance between points BC=

$BC= \sqrt (5+1)^2+(3-3)^2\\\\BC= \sqrt 6^2+(0)^2\\\\BC= \sqrt36\\\\BC=6$

The distance between points CD

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The distance between points DA

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Hence the perimeter = 5.1+6+5.1+6

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