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Mathematics 12 Online
OpenStudy (jokersmart):

The coordinates of the vertices of a rectangle are (−3,2), (5,4), (6,0), and (−2,−2) What is the perimeter of the rectangle, to the nearest tenth of a unit? 8.2 units 12.4 units 24.7 units 34.0 units

OpenStudy (jokersmart):

C?

OpenStudy (3mar):

Could I help you?

OpenStudy (jokersmart):

Yes, please..?

OpenStudy (3mar):

Thank you.

OpenStudy (3mar):

Do you want to find the length and the width and the add them then multiply the sum by 2? or you want to plot them and calculate the perimeter from the graphed rectangular?

OpenStudy (3mar):

@JokerSmart

OpenStudy (jokersmart):

Sorry, I was checking on something,

OpenStudy (3mar):

No problem.

OpenStudy (jokersmart):

Either or is fine by me,

OpenStudy (3mar):

Ok I prefer the 1st one, ok?

OpenStudy (jokersmart):

Sure thing

OpenStudy (3mar):

Take two consecutive points and apply the formula of the distance between them!

OpenStudy (jokersmart):

I see. I'll correct my answer

OpenStudy (3mar):

Why correct your answer?

OpenStudy (3mar):

Yours is correct! \[6\sqrt{17}=24.73863\]

OpenStudy (3mar):

Thank you for the medal!

OpenStudy (3mar):

@JokerSmart

OpenStudy (bonnieisflash1.0):

@jokersmart

OpenStudy (jokersmart):

@3mar If I was correct why couldn't you tell me? You had me thinking I was wrong. Or did something incorrect.

OpenStudy (jokersmart):

Regardless, whatever. Thanks?

OpenStudy (3mar):

I just want to see your steps and one thing why are you not sure about your answer as you get it correctly with right steps? Anyway you are awesome!

OpenStudy (jokersmart):

I'm still very new to this lesson and the teachers didn't explain it good, so it was natural of me to second guess my work

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