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Ask QuestionPosted by Yogsaa Rathore 5 years, 11 months ago
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Yogita Ingle 5 years, 11 months ago
Perimeter of that triangle = 60cm
the measure of hypotaneous = 25cm
then the rest sides must measure = 60-25
= 35
let one side be x
then, thw measure of the third side must be 35 - x
using pythagoras theorem
(25)^2 =(x)22 + (35-x)2
625 = x2 + x2 - 70x + 1225
x2 + x2 - 70x + 1225 = 625
x2 + x2 - 70x + 1225 -625 = 0
2 x2 - 70x + 600 = 0
2x2 - 40x - 30 x + 600= 0
2x (x-20) -30 ( x - 20) = 0
(x-20)(2x-30)=0
x -20 = 0
x = 20
2x -30 =0
2x =30
x = 15
so,
one of the side measure either 20 cm 15 cm
if one side measure 20cm then the other must measure 35 -20 = 15cm
and if it measured 15 cm then the other side measure 35-15 = 20 cm
so,we will get 20cm and 15 cm as our remaining sides.
one of then will be height and the other misy be the base,
now apply the formula of area of triangle i.e
(1/2) (height)(base)
= (1/2 )(20)(15)
= 150 cm2
so, the area of that triangle will be 150 cm2.
Posted by Khagendra Shrivas 5 years, 11 months ago
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Vikas Saini 5 years, 11 months ago
Yogita Ingle 5 years, 11 months ago
An electric generator converts mechanical energy into electrical energy. The principle behind the electric motor is based on Fleming’s right hand rule.
Posted by Kunal Sharma 5 years, 11 months ago
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Anurenjana Mohanan 5 years, 11 months ago
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Yogita Ingle 5 years, 11 months ago
Young Italy, Italian Giovine Italia, movement founded by Giuseppe Mazzini in 1831 to work for a united, republican Italian nation. Attracting many Italians to the cause of independence, it played an important role in the Risorgimento (struggle for Italian unification).
Posted by Charusheela Phuge 5 years, 11 months ago
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Yogita Ingle 5 years, 11 months ago
- The metals at the top of the activity series are highly reactive.
- They cannot be obtained from their compounds by heating with carbon.
- These metals have more affinity for oxygen.
- These metals are obtained by electrolytic reduction.
- Sodium ions migrate to the cathode, where electrons enter the melt and are reduced to sodium metal.
- Chloride ions migrate the other way, toward the anode. They give up their electrons to the anode and are oxidized to chlorine gas.
Posted by Ankit Kumar 5 years, 11 months ago
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Yogita Ingle 5 years, 11 months ago
Using mid point formula ,
that is , coordinates of mid point of a line segment with end points (x1 , y1) and (x2 , y2) are
=> ( (x1 + x2 )/ 2 , (y1 + y2)/2 )
therefore , using above formula ,
=> mid point of (-5,7) and (-1,3) is
=> x- coordinate = [-1+(-5)]/2 = = -6/2 = -3
and y coordinate = (7+3)/2 = 5
=> coordinates are (-3 , 5 )
Posted by Karuna Bittu 5 years, 11 months ago
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Diksha? 5 years, 11 months ago
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Yogita Ingle 5 years, 11 months ago
Mendel selected true breeding tall (TT) and dwarf (tt) pea plants.When a tall pea plant is crossed with a short (dwarf) pea plant, all the F1 hybrids are tall. (i.e., in this case, the gene causing tallness is dominant while the gene causing dwarfness is recessive.).The trait expressing itself in the hybrid is the dominant one.
(Mendel’s first law of inheritance states that when a pair of contrasting factors is brought in a hybrid, one factor inhibits the appearance of the other. The one which inhibits is the dominant one and which is inhibited is recessive.)
- In Mendel’s experiment of breeding tall (TT) and dwarf (tt) plants, Mendel found that all plants in the F1 generation were tall.
- The F1 generation had genetic constitution Tt. It is genotypically a hybrid and a heterozygous plant having two different alleles, T and t.
- Phenotypically, the plant is tall because the allele or the gene T for tallness masks the effect of its corresponding recessive gene t.
- So, dwarf plants with genotype (tt) were not obtained in the F1 generation. This implies that out of two, one of the contrasting characters for a particular trait is dominant which masks the expression of the other character which then becomes recessive.
- This experiment showed that traits may be dominant or recessive, depending on their expression in the F1 generation.
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Aadya Singh ? 5 years, 11 months ago
b) H2SO4 acts as an catalyst and a dehydrating agent which help in the removing water formed in the reaction between alcohol and carboxylic acids...
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Shubham Yadav 5 years, 11 months ago
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Yogita Ingle 5 years, 11 months ago
Let us assume √2 is rational number.
a rational number can be written into he form of p/q
√2=p/q
p=√2q
Squaring on both sides
p²=2q²__________(1)
.·.2 divides p² then 2 also divides p
.·.p is an even number
Let p=2a (definition of even number,'a' is positive integer)
Put p=2a in eq (1)
p²=2q²
(2a)²=2q²
4a²=2q²
q²=2a²
.·.2 divides q² then 2 also divides q
Both p and q have 2 as common factor.
But this contradicts the fact that p and q are co primes or integers.
Our supposition is false
.·.√2 is an irrational number.
2Thank You