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Section and Mid- Point Formula — Mathematics STD 10 — Question

ICSE BoardEnglish MediumSTD 10MathematicsSection and Mid- Point Formula1 Mark
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Reason (R): If annual income = number of shares rate of dividend face value of one share.
Then, Rate of dividend
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Assertion (A) : The reflection of the point $(-4,5)$ in the origin is $(4,-5)$.
Reason (R) : Points of the type $(x, 0)$ are invariant under the reflection in $y$-axis.
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Assertion (A) : We can always estimate median and mode of a data from the frequency polygon (ogive).
Reason (R) : The observation which has highest frequency in a data is called mode of the data.
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Assertion (A) : At some time of a day, if the length of the shadow of a tower is equal to its height, then the sun's elevation is $45^{\circ}$.
Reason (R) : The angle which the line of sight makes with the horizontal line passing through the eye of the observer, when the object is above the observer, is called the angle of elevation.
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Assertion : If $A$ and $B$ are square matrices of order 2 , then $A B=B A$ is not always true.
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Assertion (A) : The maximum volume of a cone that can be carved out of a solid hemisphere of radius $r$ is $\frac{1}{3} \pi r^3$.
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Assertion : The sum of the first hundred natural numbers, divisible by 5 , is 25250 .
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Assertion (A) : If $a x^2-2 x+2=0$ has no real root, then $a>\frac{1}{2}$
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Assertion (A) : In a size transformation, if the scale factor is $>1$, then the transformation is an enlargement.
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