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Mathematics 20 Online
Taneia:

If the figure the ratio of the perimeter of rectangle ABCDE to the perimeter of triangle BCD is ___. The area of polygon ABCDE is ___ sq. units (fill in both blanks) Choices for the first blank. A: 2/3 B: 1 C: 3/2 D: 2 Choices for the second blank A: 18 B: 22 C: 24 D: 28

Vocaloid:

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Vocaloid:

ok since nobody answered this question perimeter of ABCDE is just the 2L + 2W where L is length and W is width perimeter of BCD is the sum of the sides lengths. this is a bit tricky since some of the sides are on an angle compared to the grid, but we can use the pythagorean theorem to find them.

Vocaloid:

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Vocaloid:

|dw:1580425852477:dw|

Vocaloid:

the perimeter of the entire polygon is just the sum of all sides, which you should be able to determine from previous calculations

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