3 years ago

How to solve this please?

Mathematics

1 answer:

Alisiya [41]3 years ago

6 0

Simplifying in the bracket first then following the rules of operations-4+8-[16x1+4]
-4+8-[20]
-16

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Step-by-step explanation:

Step one

given the coordinates

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

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The distance between points AB=

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

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$CD= \sqrt (4-5)^2+(-2-3)^2\\\\CD= \sqrt -1^2+(-5)^2\\\\CD= \sqrt26\\\\CD=5.1$

The distance between points DA

$DA= \sqrt (4+2)^2+(-2+2)^2\\\\DA= \sqrt 6^2+(0)^2\\\\DA= \sqrt36\\\\DA=6$

Hence the perimeter = 5.1+6+5.1+6

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