Here,  AB + BC + CA = Permeter of ∆ABC or, AP + PB + BQ + QC + AR + RC = Permeter of ∆ABC   [ Whole part axiom.] or, 2AP + 2 BQ + 2 CR = Permeter of ∆ABC    [ AP = AR,BP  BQ & .....

From your figure,  1. ∡OAQ = 90o                     [ Radius is perpendiculat to the tangent.] 2. ∡OBR = 90o                    .....

Please post a question at a time. 3.a)  We have given,  secθ = 5√2/7 or, cos θ = 7 / 5√2 = b / h               [ Since, cos = 1/ sec.] Now,  p .....

The social rules are norms and the values established by the society to carry various functions smoothly. They do not have legal status hence cannot be challenged in the court. This type of social rules helps to decrease the social crimes in .....

You may have heard or read about this experiment. If you place a bar magnet in iron dust you can see that most of the dust is collected at the poles of the magnet and a smaller amount of dust is collected at the center of the magnet.  This .....

The attracting power of a magnet is stronger at the two ends and weaker in the .....

Here Given: OB = OD & OA = OC To prove: ∆OAB ≅ ∆OCD & AB//CD. Proof: 1.In ∆OAB & ∆OCD   (i) OB = OD(S)                        .....

Planning of production is to establish the industries and successfully operate them in the particular area. It involves the study of market for the product, identify the potential client, identify the resources and successfully run and operate .....

The people also rear domestic animals and grow fruits and vegetables. Many industries are set up in this region. Due to the availability of raw materials, there are cement, bricks and tiles, textile, biscuit, leather and shoes, beer and wine and .....

Mountain Region Terai Region Mountain region lies at the northernmost part of the country. It lies at the southernmost part of the country. It occupies 15% of the total land of the country. It occupies 17% of .....

The Hilly region is situated in the central part of the country. It occupies 68% of the total land of the country. It spreads from Mechi in the east to Mahakali in the west. It has high hills and rocks. There are certain valleys surrounded by .....

Here, 4/x - 3/y = 6..................(i) 5/y + 6/x = 28................(ii) Multiplying (i) by 5 and  (ii) by 3 and adding 4/x - 3/y = 6      ] ⨯ 5 6/x + 5/y = 28   ] ⨯ 3 _____________________ 20/x + .....

कृपया प्रश्न उल्लेख गर्नुहोला .....

Here, we have given 11x-7y=43.....................(i) 2x-3y=13......................(ii) Multuplying (i) by 2 & (ii) 11 and subtracting, 11x - 7y = 43 ] ⨯ 2 2x -  3y = 13   ] ⨯ 11 (-)  (+)    .....

We know that Nepal is a country of natural beauty. It is a small landlocked country. Geographically, it has been divided into three different regions. They are Himalayan, Hilly and Terai region. The Himalayan region lies at the northernmost part .....

Mountain Region Hilly region Mountain region lies at the northernmost part of the country. It lies at the middle part of the country. It occupies 15% of the total land of the country. It occupies 68% of the .....

Customers will generally demand more of a product at a lower cost. For example, there are more people who would be willing to pay Rs.2500 for a big-screen TV than those who would pay Rs. 5000, and fewer still who would be willing to pay Rs. .....

Here, LSA = 168cm2. We know,  LSA = Perimeter of base ⨯ height or, 168 = ( 16 + c) 7      , c is length of third side. or, 24 = 16 + c or, c = .....

Firstly, air is passed through lime water and then concentrated sulphuric acid to make the air free from carbon dioxide and moistures respectively. The air contains only nitrogen and oxygen which are passed over the heated copper wire. Here .....

Here, Let   x be the required naturel number. Then, x - 20 = 96 / x or, x2 - 20 x  = 96 or, x2 - 20x - 96 = 0 or, x2 - 24x + 4x - 96 = 0 Now factorize and find .....

Here, a = 12cm  b = 5cm c= 13cm s = ( a + b + c) / 2 = 15cm Now,  Area = √[ s( s- a) (s - b) (s - c)]          =  √[ 15( 15-  12) (15 - 5) (15 - 13)] cm2 Calculate .....

Here is an example: Question: The growth rate of a certain type of useful bacteria is 10% per day. During a research work in a laboratory, if the bacteria are grown upto the number of 2.662 x 1012 in 3 days, how many bacteria were there before .....

Here, R = 10% Pt = 40000 T = 3 yrs. We know, Pt = P( 1 - R/100)T or, 40000 = P( 1 - 10/100)3 or, P = 40000 / (0.9)3         = ..................find .....

Here, R = 20% T =  3 yrs P = Rs.175000 Price after 3 yrs = Pt = ? We know,  Pt = P( 1 - R/100)T      = 175000 ( 1 - 20/100)3     = 175000 ( 0.8)3     = .....

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Here,  Growth rate = R = 50/1000 ⨯ 100% = 5%. Time = T = 2yrs. Pt = 22050 Present population = P = ? We know, Pt = P( 1 + R/100)T or, 22050 = P( 1 + 5/100)2 or, P = 22050 / (1.05)2 Find .....

Given, Present population of Jajarkot (Pt) = 122412 Population of Jajarkot 2 years ago (P) = 120000 Time (t) = 2 years Crude death rate = 5% Using the formula,  Pt = P(1 + r/100)t or, 122412 = 120000(1 + r/100)2 or, 122412/120000 = (1 + .....

Here, Pt = 44100 P = 40000 N = 2 R = ? By using formula.  Pt =P1+R100n Put the value and solve .....

Here, C. P =  46305 P = 40000 R = 5% n = ? By using formula  C.P =P1+R100n Put the value and solve .....

Here, C. A = Rs 79860 P = Rs. 60000  R = 10%  n = ? By using formula,  C.A =P1+R100n Put the value and solve .....

Here, C.I = 1881 R = 9% n = 2 P = ? By using formula  C.I =P1+R100n-1 Put hte value you can solve .....

Here,  P = Rs. 850 R = 8% n = 1 year. You can solve this by using  Simple Interest or  Compound Interest .....

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Rust is an iron oxide, a usually red oxide formed by the redox reaction of iron and oxygen in the presence of water or air moisture. Several forms of rust are distinguishable both visually and by spectroscopy, and form under different .....

Here, ∡P = ∡Q  Since,in  two equal circles "Equal archs AB makes equal angle at circumference." So triangle BPQ is an isoscale triangle. Thus, BP = .....