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27 Jan 2020, 02:53
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D
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Difficulty:
25%
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Question Stats:
75% (01:27) correct
25%
(01:29)
wrong
based on 52
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What is the area of triangle ABC with sides AC = 15 and Side BC=4/5*AC.
(1) Side AB = 9
(2) If a circle is drawn with segment AC as a diameter, then point B of triangle ABC lies on the circumference of such a circle.
(1) Side AB = 9
(2) If a circle is drawn with segment AC as a diameter, then point B of triangle ABC lies on the circumference of such a circle.
27 Jan 2020, 03:11
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What is the area of triangle ABC with sides AC = 15 and Side \(BC=\frac{4}{5}*AC\) ?
—> \(BC = (\frac{4}{5})*15 = 12\)
(Statement1): Side AB = 9
Now, We know all sides of the triangle —> we can find the area of the triangle
Sufficient
(Statement2): If a circle is drawn with segment AC as a diameter, then point B of triangle ABC lies on the circumference of such a circle.
—> ABC triangle is right-angled triangle. Hypotenuse —15
Sides —12 and 9
\(The area = \frac{12*9}{2} = 54\)
Sufficient
The answer is D
Posted from my mobile device
—> \(BC = (\frac{4}{5})*15 = 12\)
(Statement1): Side AB = 9
Now, We know all sides of the triangle —> we can find the area of the triangle
Sufficient
(Statement2): If a circle is drawn with segment AC as a diameter, then point B of triangle ABC lies on the circumference of such a circle.
—> ABC triangle is right-angled triangle. Hypotenuse —15
Sides —12 and 9
\(The area = \frac{12*9}{2} = 54\)
Sufficient
The answer is D
Posted from my mobile device
27 Jan 2020, 05:33
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Question Stem information: AC = 15, BC = 15*4/5 = 12
1) AB = 9
All three sides are known, hence, a unique triangle can be drawn, the area can be found out.
SUFFICIENT
2) Since AC is diametre and B lies on the circumference of the circle, hence the triangle ABC is a right-angled triangle with right angle at B. hence, a unique triangle can be drawn, the area can be found out.
SUFFICIENT
Answer = D
1) AB = 9
All three sides are known, hence, a unique triangle can be drawn, the area can be found out.
SUFFICIENT
2) Since AC is diametre and B lies on the circumference of the circle, hence the triangle ABC is a right-angled triangle with right angle at B. hence, a unique triangle can be drawn, the area can be found out.
SUFFICIENT
Answer = D
Bunuel
