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17 Aug 2017, 23:35
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C
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If the area of ∆ PQR above is 32, what is the length of PR?
(A) 2
(B) 7
(C) 8
(D) 16
(E) 32
Attachment:
2017-08-18_1026_001.png [ 3.91 KiB | Viewed 2915 times ]
18 Aug 2017, 00:14
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Answer C
Area =32
Given triangle is right angled triangle. And one angle is 45. From this we will get angle pqr which is 45. So the triangle is isosceles right triangle.
So area = 1/2 * pr*pr=32
Pr = 8
Sent from my MotoG3 using GMAT Club Forum mobile app
Area =32
Given triangle is right angled triangle. And one angle is 45. From this we will get angle pqr which is 45. So the triangle is isosceles right triangle.
So area = 1/2 * pr*pr=32
Pr = 8
Sent from my MotoG3 using GMAT Club Forum mobile app
18 Aug 2017, 03:03
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45-45-90 triangle
we get height = base
so, .5 * x^2 = 32
X = 8
we get height = base
so, .5 * x^2 = 32
X = 8
