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AB=12, AC=30, and AD= 2/5(AC).
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05 Dec 2017, 12:39
05 Dec 2017, 12:39
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AB=12, AC=30, and AD= 2/5(AC).
Quantity A |
Quantity B |
The measure of angle BDC |
120° |
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: AB=12, AC=30, and AD= 2/5(AC).
[#permalink]
06 Dec 2017, 08:53
06 Dec 2017, 08:53
1
1
Carcass wrote:
Attachment:
triangle.jpg
AB=12, AC=30, and AD= 2/5(AC).
Quantity A |
Quantity B |
The measure of angle BDC |
120° |
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.
Show: :: OA
OA in 24h
Here
AD = 2/5 * AC
= 2/5 * 30 =12
Now in Trinagle ABD
AB =AD = 12
Hence the angle are also equal i.e angle ABD = angle ADB = 45 (since given angle a = 90 degree)
Now angle BDC = 180 - angle ADB
= 180 - 45 =135
Hence option A > B
Re: AB=12, AC=30, and AD= 2/5(AC).
[#permalink]
31 Dec 2023, 09:00
31 Dec 2023, 09:00
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