rachelmaddie
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- Aug 30, 2019
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So perimeter is incorrect?I hope that you know that if a & b are positive then ab=a⋅b ??
We know that UV=5 & XU=90=910=310
So perimeter is incorrect?I hope that you know that if a & b are positive then ab=a⋅b ??
We know that UV=5 & XU=90=910=310
Your approximation is fine. You made your approximation when you said that Sqrt(90) = 9.48683298So perimeter is incorrect?
The perimeter is 10+610 and that is the exact value.So perimeter is incorrect?
I thought that the whole decimal of sqrt(90) was the exact value.The perimeter is 10+610 and that is the exact value.
It is absolutely impossible to give a decimal equivalent for 10+610 that is an exact value.I thought that the whole decimal of sqrt(90) was the exact value.
P = 2 x 5 + 2 x 3sqrt10?It is absolutely impossible to give a decimal equivalent for 10+610 that is an exact value.
Any decimal expression can only approximate the exact value.
But the question is did you give the whole decimal number for sqrt(90)? The answer is you did not! You can't as the decimal number for sqrt(90) goes on forever with out repeating.I thought that the whole decimal of sqrt(90) was the exact value.
That is not complete yet. You should know (and do know) what 5*2 is. You can also simplify 2*3*sqrt(90). Please do so.P = 2 x 5 + 2 x 3sqrt10?
10 + 6sqrt10That is not complete yet. You should know (and do know) what 5*2 is. You can also simplify 2*3*sqrt(90). Please do so.
Are you serious? Put away your calculator, throw it out the window, smash it on the floor, but most importantly stop using it.10 + 6sqrt10
= 28.97366596
The exact answer is 10 + 6sqrt10?Are you serious? Put away your calculator, throw it out the window, smash it on the floor, but most importantly stop using it.
You had the exact answer but then you went and approximated it. Why would you do that?
Yes.The exact answer is 10 + 6sqrt10?
Why do you have two different C2 with two different values and with same name? Change the variable names.3^2 + 4^2 = C^2
9 + 16 = C^2
C^2 = 25
Sqrt(25) = 5
3^2 + 9^2 = C^2
9 + 81 = C^2
C^2 = 90
Sqrt(90) = 9.48683298
P = 2 x 5 + 2 x 9.48683298
= 10 + 18.973666
= 28.973666
Change them to what?Why do you have two different C2 with two different values and with same name? Change the variable names.
Are you serious? Put away your calculator, throw it out the window, smash it on the floor, but most importantly stop using it.
You had the exact answer but then you went and approximated it. Why would you do that?
Change them to what?
What If I changed c^2 to UV^2 and XU^2?A kite is a quadrilateral with exactly two pairs of congruent consecutive sides.
To solve for the exact perimeter of the kite UVWX first apply the Pythagorean theorem by finding the lengths of the sides of the kite.
a^2 + b^2 = c^2
3^2 + 4^2 = c^2
9 + 16 = c^2
c^2 = 25
sqrt(25) = 5
The length of triangle UV is 5.
a^2 + b^2 = c^2
3^2 + 9^2 = c^2
9 + 81 = c^2
c^2 = 90
sqrt(90) = sqrt(9*10) = sqrt(9)*sqrt(10) = 3sqrt(10)
The length of triangle XU is 3sqrt(10).
P = 2a + 2b
P = 2(5) + 2(3sqrt(10))
P = 10 + 6sqrt(10)
The exact perimeter of kite UVWX is 10 + 6sqrt(10).
What If I changed c^2 to UV^2 and XU^2?
In terms of geometric explanations and justification does everything look well explained?That would definitely work.