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ΔABC above is an isosceles triangle in which AB = AC. What i
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22 Sep 2020, 04:49
22 Sep 2020, 04:49
Expert Reply
00:00
Question Stats:
92% (00:36) correct
7% (01:02) wrong based on 53 sessions
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GRE ABC above is an isosceles triangle in which.png [ 14.46 KiB | Viewed 3168 times ]
\(ΔABC\) above is an isosceles triangle in which AB = AC. What is the area of \(ΔABC\) ?
A. 30
B. 24
C. 20
D. 15
E. 12
Re: ΔABC above is an isosceles triangle in which AB = AC. What i
[#permalink]
29 Sep 2020, 10:31
29 Sep 2020, 10:31
1
Expert Reply
Post A Detailed Correct Solution For The Above Questions And Get A Kudos.
Question From Our New Project: GRE Quant Challenge Questions Daily - NEW EDITION!
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Question From Our New Project: GRE Quant Challenge Questions Daily - NEW EDITION!
For more theory and practice see our GRE - Math Book
Re: ΔABC above is an isosceles triangle in which AB = AC. What i
[#permalink]
29 Sep 2020, 20:17
29 Sep 2020, 20:17
1
given isosceles triangle
so AC=AB=5
for finding height of triangle draw a peripendicular from point A to side BC
now BD=DC=3
height of triangle will be =\(\sqrt{(5^2 - 3^2 )}\)=4
area of triangle ABC=(1/2)*6*4 =12
option E is correct
so AC=AB=5
for finding height of triangle draw a peripendicular from point A to side BC
now BD=DC=3
height of triangle will be =\(\sqrt{(5^2 - 3^2 )}\)=4
area of triangle ABC=(1/2)*6*4 =12
option E is correct
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GRE ABC above is an isosceles triangle in which.png [ 18.93 KiB | Viewed 2993 times ]
