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The area of PQR
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09 Jun 2022, 03:00
09 Jun 2022, 03:00
Expert Reply
00:00
Question Stats:
77% (01:04) correct
22% (00:44) wrong based on 9 sessions
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Attachment:
GRE The area of PQR.jpg [ 12.59 KiB | Viewed 1038 times ]
Quantity A |
Quantity B |
The area of \(\triangle PQR\) |
Half the area of a circle of radius x |
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
Part of the project: GRE QCQ & PS 3 Questions Every One DAILY Challenge - (2022)
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GRE Math Essentials for a TOP Quant Score - Q170!!! (2021)
GRE Geometry Formulas for a Q170
GRE - Math Book
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
GRE Math Essentials for a TOP Quant Score - Q170!!! (2021)
GRE Geometry Formulas for a Q170
GRE - Math Book
Re: The area of PQR
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10 Jun 2022, 09:10
10 Jun 2022, 09:10
1
The area of triangle PQR can be expressed as (PR*x)/2.
Half the area of a circle with radius x can be expressed as pi(x^2)/2.
The diagram shows that PR=2x.
Thus, the area of the triangle can be rewritten as (2x)x/2 or 2x^2/2.
Now we can clearly see that 2(x^2) < pi(x^2).
Therefore, B is greater.
Half the area of a circle with radius x can be expressed as pi(x^2)/2.
The diagram shows that PR=2x.
Thus, the area of the triangle can be rewritten as (2x)x/2 or 2x^2/2.
Now we can clearly see that 2(x^2) < pi(x^2).
Therefore, B is greater.
Re: The area of PQR
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12 Jun 2022, 09:24
12 Jun 2022, 09:24
Area of Triangle PQR is \(\frac{1}{2}*2x*x\) = \(x^2\)
Area of a circle of radius r is \(pi*x^2\)
\(pi*x^2\) > \(x^2\)
Answer is (B)
Area of a circle of radius r is \(pi*x^2\)
\(pi*x^2\) > \(x^2\)
Answer is (B)
