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sinθ = 3/5 and h = 20 or,sinθ = p / h or,3 / 5 = p / h or,3 / 5 = p / 20 or,5p = 60 or,p = 12 is the required .....

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 फुलेका = विशेषण  देखेर = .....

 यो एउटा उखान हो ।  मौका अनुसार काम गर्ने भन्ने अर्थ यसबाट बुझिन्छ । यसलाई यसरी वाक्यमा .....

सङ्किर्ण भनेको सानो  अथवा खुम्चिएको भन्ने हुन्छ ।   यसको विपरीत जनाउने शब्द खुला तथा उदार .....

उदार भनेको कि उदर भनेको .....

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I think that the hostility between German and France was the sufficient ground for the outbreak of the World War I. It is the fact that Europe was divided into two hostile groups before the World War I. It is one of the important and most .....

Hello Aditya! Could you please check your query .....

You can use indefinite article here .....

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Equivalent fraction for 8 by 15 = 8 / 15                                                         = [ 8 x 2 ] .....

Doctor gives us medicine when we are .....

we have given,  length=15cm ,breadth =12cm & height = 3cm. We know,                volume of cuboid = Length x breadth x height                .....

If you have no money you can ask your parents. Your parents can provide you some money. You have to spend that money to buy things necessary for you. You can buy pencil, copy, book, .....

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Cloud is a visible mass of very small droplets of water in the atmosphere. It is formed by the condensation of water vapour evaporated from the earth's surface.  Cloud contains a large mass of water.  When the cloud becomes cold and .....

Kaiser Wilhelm also gave Austria Hungary a (blank cheque) which meant that Germany guaranteed to give its support in any war arrising from the conflict between Austria- Hungary and Serbia. As a result of this Russia repeated this method by .....

We know, Area of Parallelogram FABE = Area of Parallelogram ABCD [Area of parallelogram standing on same base between same parallel lines are equal] Area of parallelogram FABE = GE * AF And, Area of parallelogram ABCD =  DH * .....

Here,  Area of Triangle AEF = 1/2 Area of Parallelogram AEFD [Triangle standing in same base between same parallel lines is half the area of parallelogram] Also, Area of parallelogram ABCD = 1/2 Area of Parallelogram AEFD [Parallelogram with .....

Statement                                                             Reasons i) <CAY = .....

Let the condition can be modeled with the geometric shape. Here, AC = 30 m. <BAC = 60o In triangle ABC, tan BAC = BC/ AC or,  √3 = BC/30 Therefore, BC = 30√3 m. Now, the total height of the pole = 30√3 + 1.5 m .....

Let the breeadth of the rectangular room be 'x'. From condition,length = 2b = 2x. Also, Perimeter = 2(l + b) = 2( x + 2x) = 6x. or, 6x = 45 Therefore, x = 7.5 m. So, Breadth = 7.5 m. Length = 15 m.

39. The figure below is a compound of a house. Find the cost of fencing the compound with 5 rounds of fencing wire where 1 m wire costs Rs. 25, labour wage is Rs. 1000 per day per labour and the fencing work requires 2 days for 2 labours.

श्रीमान् प्रधानाध्यापकज्यू, शिक्षकवर्ग, यहा उपस्थित सम्पूर्ण दाजुभाइ तथा .....

43. The first quartile (Q1) = 25 find the value of y

X	0-10	10-20	20-30	30-40	40-50	50-60
Frequency	9	11	y	20	30	16

Here,  Q1 lies in  CF including (N/4) th item = (  But Q1 = 25. So, Q1 lies in the range of (20 - 25) Q1 = l + (N/4 - CF)/f * H Here, L = 20 N/4  = (86 +  y)/4 CF = 20 H = 10 or, 25 = 20 + [( 86 + y)/4 - 20]/y * .....

44. Simplify
(2x+6)/x^2-9÷(3x^2+9x)/(2x^2-6x)

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45. If sinθ = cosθ, find secθ and cotθ.

Here, sinϴ = cosϴ or, cosϴ  / sinϴ  = 1 or, cotϴ  = 1. Therefore, cotϴ  = 1. Now, tanϴ = 1/ cotϴ = 1. Also,  sec2ϴ  = 1 + tan2ϴ or, sec2ϴ  = 1 + 1 or, sec2ϴ =  2 So, secϴ  .....

46. If two chords DE and FG of a circle intersects at an internal point X, prove that ∡DXF = (1/2)(arc DF + arc GE)

Statement                                              Reason i) <EDG = 1/2 arc GE              .....

47. A man of height 2m is flying a kite from the roof of a house 32m high . If the length of the string of the kite is 120√2m and it makes an angle of 45^∘ with the horizion , find the height of the kite from the ground level.

We can model the given condition as represented by the above figure. Let AK be the man, Km be the house and B be the position of kite. Here, AB = 120√2 m. <BAC = 45o In triangle ABC, sin 45 = BC/ AB or, 1 / √2 = BC/ .....

48. Cutting is an easy technology to produce a large number of vegetative seedlings at a time." Explain.

Plants such as coleus and money plant are propagated through stem cuttings where a portion of the stem containing nodes and internodes is placed in moist soil and allowed to root.  In some species, stems can start producing a root even when .....

49. Find the area of the shaded region.

Here, the figure is a square and inside are four quarter circle. Radius of quarter circle = 7/2 cm. The area of shaded region = Area of Outer Square - 4 * Area of quarter circle                     .....

50. Find what length of canvas 2 m in width is required to make a conical tent 12 m in diameter and 6.3 m in slant height. Also find the cost of the canvas at the rate of Rs. 12.50 per meter.

Here,  Radius = 12/ 2 = 6 m. Slanted height = 6.3 m So, Slanted area of cone = πrl = 22/7 * 6 * 6.3 = 118.8 m2 . Here, width = 2 m. Length =? We know, l * b = 118.8 or, l * 2 = 118.8 Therefore, l = 59.4 m. Now,  Total .....

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