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The angle of deviation through a triangular prism is defined as the angle between the incident ray and the emerging ray (angle δ). It can be shown that when the angle of incidence i is equal to the angle of refraction r' for the emerging ray, the angle of deviation is at a minimum.

The deviation angle in a prism depends upon: Refractive index of the prism: The refractive index depends on the material and the wavelength of the light. The larger the refractive index, the larger the deviation angle. Angle of the prism: The larger the prism angle, the larger the deviation angle.

where 50 came from???

please let me know if you have understood it or not thanks

Given:-

A parallelogram ABCD and AC is its diagonal .

To prove :-

△ABC≅△CDA

Proof :-

In△ABC and△CDA,we have

∠DAC =∠BCA [alt. int. angles, since AD| | BC]

AC = AC [common side]

And

∠BAC=∠DAC[alt. int. angles,since AB| | DC]

∴ By ASA congruence axiom, we have

△ABC≅△CDA

Hope it helps you

4CM x 3cm x 2cm = 24 cms, 12CM x 9 cm x 6 cm =12×54=62+48=648cm

24 x 24 x 24 = 12, 824, 12x9x6=108×6=648=(2)^3×(3)^3 ×3

648 I rightMay this help you

12cm×9cm×6cm________________ =27cm4cm×3cm×2cm

when we will divide the volume of bigger and smaller cuboid you can get answer. answer is 942

how long will it take for a sum of rupees 12600 in invested at 9 percent per annum become to rupees 15624

aacha he hai bhai pasand aaya mujhe thnks

perimeter= 4* side164=4* sideso value of side will be 41 cmnow the area of a square is side * sideso 41*41 = 1681 cm^2 will be the answer

thanks....

120cm is the surface area

surface area of the brick= 2[(10*4)+(4*3)+(3*10)=2(40+12+30)= 2×82=164cm3

When we open a dicot seed,then it's embryo shows two parts namely:1) Radicle - It grows into roots {Future Root}2)Plumule - It grows into shoots {Future Shoot}

Given,Length of wall l = 6m, Breadth b = 3m, Height h = 3.5m

Area of four walls of room= 2(l*h + b*h) = 2(6*3.5 + 3*3.5)= 2(21 + 21/2)= 2(42 + 21)/2= 63 m^2

Therefore, total cost of painting = 63*650= Rs 40,950

3) option is correct

4000+200+30+5 = 4235

Thnxx.. I did get 5 m However the answer given was 5.04 thus I have my doubt clarified thnxx for your help..

One query though how did the the second line have a denominator as: 1 + tan 45* tan30??

thank you let god bless you

😰

perimeter =4×side 176=4×side176/4=side44 cm =side

thank you you for giving the answer you really nailed it thank you thank you thank you thank you thanks a lot hundred times thank you

Sum will be because this is an Arithmetic serieswith a = 1 and comman difference = 2n/2 [2a+(n-1)d]n/2[2+(n-1)2]n/2[2+2n-2]n/2*2nn^2

karna desai aap ne second step me +4 ko -4 kr diya h gor kijie

wese dhanvad

All possible measurement for the third side are 3cm, 4cm, 5 cm, 6 cm, 7 cm, 8 cm and 9 cm.Total 7 triangles can be obtained.sum of two sides is always greater than 3rd side.a=4b=6c= numbers we leta+b>cb+c>ac+a>b

√(2-7)^2+(0)^2√255

3√2 x² + 13 x + 6√2= 3√2 x² + 9x + 4x + 6√2= 3x(√2 x + 3) + 2√2(√2x + 3)= (√2x + 3)(3x + 2√2)

Zeroes of the polynomial:(3x + 2√2) = 0⇒ x =2√2/3(√2x + 3) = 0⇒ x =-3/√2Sum of the roots = 2√2/3 -3/√2 = -13/3√2Product of the roots = 2√2/3 × 3/√2 = 2

Sum of the roots = -b/a = -13/3√2Product of the roots = c/a = 6√2 / 3√2 = 2.

3√2x^2 + 13 X +6√2. = 3√2x^2+9x + 4x + 6√2. =3x( V2x +3)+ 2V2( V2x +3) (3x + 2V2)( V2x + 3); 3x = -2V2; x = -2V2/3; V2x = -3; x = -3/-V2 = 3/V2