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On the xy-coordinate plane, what is the area of a triangle with vertic
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22 Mar 2021, 10:19
22 Mar 2021, 10:19
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Question Stats:
81% (01:24) correct
18% (02:08) wrong based on 32 sessions
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On the xy-coordinate plane, what is the area of a triangle with vertices at (-4, -3), (5, -3), and (-2, -7) ?
(A) 4
(B) 9
(C) 12
(D) 18
(E) 36
Kudos for the right answer and explanation
Question part of the project GRE Quantitative Reasoning Daily Challenge - (2021) EDITION
GRE - Math Book
(A) 4
(B) 9
(C) 12
(D) 18
(E) 36
Kudos for the right answer and explanation
Question part of the project GRE Quantitative Reasoning Daily Challenge - (2021) EDITION
GRE - Math Book
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Re: On the xy-coordinate plane, what is the area of a triangle with vertic
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22 Mar 2021, 10:57
22 Mar 2021, 10:57
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Carcass wrote:
On the xy-coordinate plane, what is the area of a triangle with vertices at (-4, -3), (5, -3), and (-2, -7) ?
(A) 4
(B) 9
(C) 12
(D) 18
(E) 36
Kudos for the right answer and explanation
Question part of the project GRE Quantitative Reasoning Daily Challenge - (2021) EDITION
GRE - Math Book
(A) 4
(B) 9
(C) 12
(D) 18
(E) 36
Kudos for the right answer and explanation
Question part of the project GRE Quantitative Reasoning Daily Challenge - (2021) EDITION
GRE - Math Book
Sketch the triangle and make the horizontal line the base.
The length of the base will equal the difference in x-coordinates: 5 - (-4) = 9
The height of the triangle will equal the difference in y-coordinates: (-3) - (-7) = 4
Area = (base)(height)/2
= (9)(4)/2
= 18
Answer: D
General Discussion
On the xy-coordinate plane, what is the area of a triangle with vertic
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24 Mar 2021, 00:57
24 Mar 2021, 00:57
1
Ideally this questions is extremely easy after you plot a rough graph as shown in the previous answer
Area of a triangle = 0.5*base*height.
A hint in the question is the similar y coordinates for points 1, 2. This allows you to consider that plotting a rough graph would make things easier
Area of a triangle = 0.5*base*height.
A hint in the question is the similar y coordinates for points 1, 2. This allows you to consider that plotting a rough graph would make things easier
