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faust18 [17]
3 years ago
15

Find the perimeter p of ▱jklm with vertices j(2,2), k(5,3), l(5,−3), and m(2,−4). Round your answer to the nearest tenth, if nec

essary.
Mathematics
1 answer:
Vesnalui [34]3 years ago
8 0

Consider the vertices of parallelogram JKLM with vertices J(2,2) , K(5,3) , L(5,-3) and M(2,-4).

Perimeter JKLM = Length JK + Length KL + Length LM + Length JM

Length JK = (2,2) (5,3)

The length(or distance) between two points say (x_{1},y_{1}) and (x_{2},y_{2}) is given by the distance formula:

\sqrt{(x_{2}-x_{1})^{2}+(y_{2}-y_{1})^{2}}

Now, length JK = \sqrt{(5-2)^{2}+(3-2)^{2}}

= \sqrt(10) units

Since, JKLM is a parallelogram. In parallelogram opposite sides are equal in length.

Therefore, LM =  \sqrt(10) units

Now, length KL = \sqrt{(5-5)^{2}+(-3-3)^{2}}

= 6 units

Since, JKLM is a parallelogram. In parallelogram opposite sides are equal in length.

Therefore, JM =  6 units

Perimeter of JKLM =  \sqrt(10) +  \sqrt(10) + 6 + 6

= 2 \sqrt(10) + 12

= 18.324

Rounding to the nearest tenth, we get

= 18.3 units.

Therefore, the perimeter of JKLM is 18.3 units.


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