Practice Question and Answer
8 Q: An isosceles triangle ABC is right angled at B.D is a point inside the triangle ABC. P and Q are the feet of the perpendiculars drawn from D on the side AB and AC respectively of ∆ ABC. If AP = a cm, AQ = b cm and ∠BAD = 15°, sin 75°=
816 0645ce3a019bbd20a9ac5550c
645ce3a019bbd20a9ac5550c- 1$${2b\over \sqrt {3} a}\ $$false
- 2$${a\over 2b} $$false
- 3$${ \sqrt {3} a\over 2b} $$true
- 4$${ 2b \over \sqrt {3} a} $$false
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Answer : 3. "$${ \sqrt {3} a\over 2b} $$"
Q: ABC is an isosceles triangle with AB = AC, A circle through B touching AC at the middle point of Q, intersects AB at P. Then AP : AB is :
1114 05efea4bfd4461c5b47dcc118
5efea4bfd4461c5b47dcc118- 13 : 5false
- 21 : 4true
- 32 : 3false
- 44 : 1false
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Answer : 2. "1 : 4"
Q: ABC is an isosceles triangle such that AB = AC and ∠B = 35°. AD is the median to the base BC. Then ∠BAD is
824 0645ce0c5e67f3b0a568e38bf
645ce0c5e67f3b0a568e38bf- 170°false
- 235°false
- 3110°true
- 455°false
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Answer : 3. "110°"
Q: If ∆ABC is an isosceles triangle with ∠C = 90° and AC = 5 cm then AB is :
1386 05efe8b92d0e1a22500c9dac6
5efe8b92d0e1a22500c9dac6- 15√2 cmtrue
- 22.5 cmfalse
- 35 cmfalse
- 410 cmfalse
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Answer : 1. "5√2 cm "
Q: The base and altitude of a right angled triangle are 12 cm and 5 cm respectively. The perpendicular distance of its hypotenuse from the opposite vertex is
602 0645cdf9c45f1450a80b9c9e6
645cdf9c45f1450a80b9c9e6- 1$$ 4{4\over 13} $$ cmfalse
- 2$$ 4{8\over 13} $$ cmtrue
- 35 cmfalse
- 47 cmfalse
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Answer : 2. "$$ 4{8\over 13} $$ cm"
Q: From a point within an equilateral triangle, perpendiculars drawn to the three sides, are 6 cm, 7 cm and 8 cm respectively. the length of the side of the triangle is:
647 0645cdf1c4d91510a5da91cae
645cdf1c4d91510a5da91cae- 17 cmtrue
- 210.5 cmfalse
- 3$${14 \sqrt { 3}} $$ cmfalse
- 4$${14 \sqrt { 3}}\over 3 $$ cmfalse
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Answer : 1. "7 cm "
Q: The sides of a triangle are in the ratio 3 : 4 : 5. The measure of the largest angle of the triangle is
628 0645cdea3e67f3b0a568e1504
645cdea3e67f3b0a568e1504- 160°false
- 290°true
- 3120°false
- 4150°false
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Answer : 2. "90° "
Q: The length of the perpendiculars drawn from any point in the interior of an equilateral triangle to the respective sides are p1 , p2 and p3 . The length of each side of the triangle is
675 0645cde3f1efb290ac2460040
645cde3f1efb290ac2460040- 1$${2\over \sqrt { 3}}+(p_1+p_2+p_3) $$true
- 2$${1\over \sqrt { 3}}+(p_1+p_2+p_3) $$false
- 3$${1\over \sqrt { 3}}+(p_1+p_2+p_3) $$false
- 4$${4\over \sqrt { 3}}+(p_1+p_2+p_3) $$false
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