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Each angle in ∆QRS has a degree measurement of either x or y
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22 May 2017, 01:43
22 May 2017, 01:43
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Question Stats:
65% (01:11) correct
34% (01:14) wrong based on 216 sessions
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#GREpracticequestion Each angle in QRS has a degree measurement of either x or y.jpg [ 5.06 KiB | Viewed 11603 times ]
Each angle in ∆QRS has a degree measurement of either x or y and the angles are expressed by the equation 2x + y = 180
Quantity A |
Quantity B |
Perimeter of \(\triangle QRS\) |
\(17\) |
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: Each angle in ∆QRS has a degree measurement of either x or y
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10 Oct 2017, 07:55
10 Oct 2017, 07:55
1
If the angles are such that 2x + y = 180, this means that two angles are equal and our triangle is isosceles. However, there are two cases depending on which angles are equal:
case 1) sides RQ and RS are equal and the perimeter is 7+7+4 = 18 -> answer A
case 2) sides SQ and SR are equal and the perimeter is 4+4+7 = 15 -> answer B
Since we can't say which one is greater than the other, the answer is D
case 1) sides RQ and RS are equal and the perimeter is 7+7+4 = 18 -> answer A
case 2) sides SQ and SR are equal and the perimeter is 4+4+7 = 15 -> answer B
Since we can't say which one is greater than the other, the answer is D
Re: Each angle in ∆QRS has a degree measurement of either x or y
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05 Apr 2018, 00:24
05 Apr 2018, 00:24
1
The word problem implicates that the given triangle is an isosceles triangle. So the third side can be either 7 or 4. So substituting both the values would give 15 or 18. So precisely finding bigger number is not easy.
TRAP: Images can be misleading. Don't fall for them. Read question carefully and then have an imaginary figure based on information.
TRAP: Images can be misleading. Don't fall for them. Read question carefully and then have an imaginary figure based on information.
