The vertices of a quadrilateral in the coordinate plans are known. How can the perimeter of the figure be found?
1 answer:
Answer:
The perimeter can be found by calculating lengths of sides using distance formula and then adding up the lengths
Step-by-step explanation:
If the vertices of a quadrilateral are known in the coordinate plane, the vertices can be used to determine the lengths of sides of quadrilateral. The distance formula is used for calculating the distance between two vertices which is the length of the side
after calculating all the lengths of four sides using their vertices, they can be summed up to find the perimeter ..
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Answer:
Step-by-step explanation:
Answer: Choice A) 15 feet
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x = length of fourth side in quadrilateral ABCD
Have a look at the attached image I've posted. I made a chart that lines up the side lengths from largest to smallest. Note how the first two items in the bottom row are blank. We don't know these values and we don't need to find out in order to find x.
Based on the last two columns of that table, we can form the proportion below, which is then used to isolate x.
30/12 = x/6
30*6 = 12*x ... cross multiply
180 = 12*x
12*x = 180
x = 180/12 ... divide both sides by 12
x = 15
