Maths Practice Question and Answer
8 Q: From a point in the interior of an equilateral triangle, the length of the perpendiculars to the three sides are 6 cm, 8 cm and 10 cm respectively. The area of the triangle is
397 064d2378cebd5c374726ede85
64d2378cebd5c374726ede85- 1false
48 cm2
- 2false
16√3 cm2
- 3true
192√3 cm2
- 4false
192 cm2
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Answer : 3. "192√3 cm2
"
Q: In an isosceles triangle, the measure of each of equal sides is 10 cm and the angle between them is 45°. the area of the triangle is
308 064d2373290a003851dda5a10
64d2373290a003851dda5a10- 1$$25 \ cm^2 $$false
- 2$$ {25\over 2}\sqrt { 2}cm^2 $$true
- 3$$25 \sqrt { 2} \ cm^2$$false
- 4$$25 \sqrt { 3} cm^2$$false
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Answer : 2. "$$ {25\over 2}\sqrt { 2}cm^2 $$"
Q: The diagonal of a right angle isosceles triangle is 5 cm. Its area will be
375 064d236cdeb9b4274b353fcba
64d236cdeb9b4274b353fcba- 15 sq.cmfalse
- 26.25 sq.cmtrue
- 36.50 sq.cmfalse
- 412.5 sq.cmfalse
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Answer : 2. "6.25 sq.cm "
Q: $$(1+tan θ+secθ)(1+cotθ-cosecθ)\over (sec θ+tan θ)(1-sin θ) $$ is equal to :
544 064d22b9690a003851dda2d4d
64d22b9690a003851dda2d4d- 12sec θtrue
- 22cosec θfalse
- 3cosec θfalse
- 4sec θfalse
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Answer : 1. "2sec θ"
Q: The graphs of the linear equations 3x-2y=8 and 4x+3y=5 interest at the point P(α, β). What is the value of (2 α - β)?
401 064d22b3b0df042748fa6494c
64d22b3b0df042748fa6494c- 13false
- 24false
- 36false
- 45true
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Answer : 4. "5"
Q: If x2+4y2=17 and xy=2, where x>0,y>0, then what is the value of x3+8y3?
458 064d22ad9ebd5c374726e29dc
64d22ad9ebd5c374726e29dc- 195false
- 285false
- 365true
- 476false
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Answer : 3. "65"
Q: if a+b+c=7 and a3+b3+c3-3abc=175, then what is the value of (ab+bc+ca)?
474 064d22a58a7983774471941cd
64d22a58a7983774471941cd- 18true
- 29false
- 37false
- 46false
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Answer : 1. "8"
Q: $$ secA(secA+tanA)(1-sinA)\over (cosec^2A-1)sin^2A$$ is equal to:
381 064d22a1690a003851dda2b4a
64d22a1690a003851dda2b4a- 1cotAfalse
- 2cosAfalse
- 3true
sec2A
- 4false
cos2A
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