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The perimeter of quadrilateral ABCD
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07 Dec 2022, 03:31
07 Dec 2022, 03:31
Expert Reply
00:00
Question Stats:
80% (01:28) correct
20% (01:13) wrong based on 15 sessions
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Attachment:
GRE The perimeter of quadrilateral ABCD.jpg [ 24.84 KiB | Viewed 1653 times ]
Quantity A |
Quantity B |
The perimeter of quadrilateral ABCD |
The area of the shaded region |
A. Quantity A is greater.
B. Quantity B is greater.
C. The two quantities are equal.
D. The relationship cannot be determined from the information given.
Re: The perimeter of quadrilateral ABCD
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07 Dec 2022, 20:07
07 Dec 2022, 20:07
The diamond generates two different triangles, each with a base of 10 and a height of 12.
Area of a triangle = .5 * 10 * 12 = 60 + 60 (adding 60 since there are two triangles with this area) = 120 = QB
QA: use the Pythagorean theorem, the diamond generates four triangles, each with legs that have lengths of 5 and 12 and thus a hypotenuse of 13 (5^2 + 12^2 = 13^2). 13 * 4 = 52
QB is larger
Area of a triangle = .5 * 10 * 12 = 60 + 60 (adding 60 since there are two triangles with this area) = 120 = QB
QA: use the Pythagorean theorem, the diamond generates four triangles, each with legs that have lengths of 5 and 12 and thus a hypotenuse of 13 (5^2 + 12^2 = 13^2). 13 * 4 = 52
QB is larger
Re: The perimeter of quadrilateral ABCD
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11 Dec 2022, 04:00
11 Dec 2022, 04:00
Expert Reply
OE
The axes split the quadrilateral into four equal 5-12-13 right triangles. So the perimeter is 4(13) = 52, and the area of each of the 4 triangles is 30 for a total area of 120. Quantity B is therefore greater.
The axes split the quadrilateral into four equal 5-12-13 right triangles. So the perimeter is 4(13) = 52, and the area of each of the 4 triangles is 30 for a total area of 120. Quantity B is therefore greater.
