Maths Practice Question and Answer
8 Q: If ∆ABC is an isosceles triangle with ∠C = 90° and AC = 5 cm then AB is :
1393 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
604 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:
648 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
629 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
676 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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Answer : 1. "$${2\over \sqrt { 3}}+(p_1+p_2+p_3) $$ "
Q: If the arcs of square length in two circles subtend angles of 60° and 75° at their centres, the ratio of their radii is
623 0645cdd8045f1450a80b9bbd0
645cdd8045f1450a80b9bbd0- 13 : 4false
- 24 : 5false
- 35 : 4true
- 43 : 5false
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Answer : 3. "5 : 4 "
Q: In Δ ABC, D and E are points on AB and BC, respectively, such that DE is parallel to AC. If DE = 3 cm, AC = 5 cm and the area of trapezium ACED = 32 cm2, then what will be the area of Δ BDE?
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64537b6c223d4c08a7dfbac2- 1true
$$18$$ cm2
- 2false
$${48\over 5} $$ cm2
- 3false
16 cm2
- 4false
$$144\over 7$$ cm2
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Answer : 1. "$$18$$ cm2
"
Q: A wire is in the form of a circle of radius 98 cm. A square is formed out of the wire. What is the approximate length of a side of the square?
746 06453816713eb5908ae34ca58
6453816713eb5908ae34ca58- 1156 cmfalse
- 2148 cmfalse
- 3152 cmfalse
- 4154 cmtrue
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