Pre Algebra Help! 4 Questions?

Eligio B

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4. Which best describes the polygon whose vertices in the coordinate plane are (-5, 5), (0, 5), (0, 0), (-5, 0)?
equilateral

equiangular

regular

none of these



5. Which best describes the polygon whose vertices in the coordinate plane are (-2, 3), (2, 3), (2, -1), (-2, -1)?
equilateral

equiangular

regular

none of these

3. Which equation can be used to find the perimeter of a regular octagon with sides of length 12?

P = 8 + 12

P = 8(12)

P = 12 ÷ 8

P = 2(8) + 2(12)



2. What is the perimeter of a rectangle with a width of 23.6 cm and a length of 52.9 cm?

76.5 cm

100.1 cm

153 cm

180 cm



3. Three sides of a pentagon have a length of 26 cm each. Each of the remaining two sides has a length of 14.5 cm. What is the perimeter of the pentagon?

75 cm

81 cm

107 cm

377 cm
 
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