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Point A in the xy-coordinate system is shown below. Given tw
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20 Apr 2020, 11:18
20 Apr 2020, 11:18
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Question Stats:
67% (01:50) correct
32% (01:58) wrong based on 40 sessions
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Point A in the xy-coordinate system is shown below. Given two other points B (4a, b) and C (2a, 5b), what is the area of triangle ABC in terms of a and b?
Screen Shot 2020-04-21 at 12.46.40 AM.png [ 22.84 KiB | Viewed 2860 times ]
A) \(\frac{7ab}{2}\)
B) \(\frac{9ab}{2}\)
C) \(\frac{15ab}{2}\)
D) \(4ab\)
E) \(6ab\)
Attachment:
Screen Shot 2020-04-21 at 12.46.40 AM.png [ 22.84 KiB | Viewed 2860 times ]
A) \(\frac{7ab}{2}\)
B) \(\frac{9ab}{2}\)
C) \(\frac{15ab}{2}\)
D) \(4ab\)
E) \(6ab\)
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Re: Point A in the xy-coordinate system is shown below. Given tw
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20 Apr 2020, 15:29
20 Apr 2020, 15:29
2
workout wrote:
Point A in the xy-coordinate system is shown below. Given two other points B (4a, b) and C (2a, 5b), what is the area of triangle ABC in terms of a and b?
A) \(\frac{7ab}{2}\)
B) \(\frac{9ab}{2}\)
C) \(\frac{15ab}{2}\)
D) \(4ab\)
E) \(6ab\)
Attachment:
The attachment Screen Shot 2020-04-21 at 12.46.40 AM.png is no longer available
A) \(\frac{7ab}{2}\)
B) \(\frac{9ab}{2}\)
C) \(\frac{15ab}{2}\)
D) \(4ab\)
E) \(6ab\)
From the diagram, it is clear that:
Attachment:
1.JPG [ 22.66 KiB | Viewed 2839 times ]
Area = 1/2 * Base * H = 1/2 * (4a - a) * (5b - b) = 6ab
Re: Point A in the xy-coordinate system is shown below. Given tw
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20 Apr 2020, 16:11
20 Apr 2020, 16:11
Expert Reply
Great explanation Sir.
regards
regards
