The following table gives the number of sides and the number of diagonals of a polygon. `{:("Number of sides",3,4,5,6,7,8),("Number of diagonals",0,2,

Correct Answer - `1 muT`

Let a be the radius of the circle. Then, `S_(1)` = Area of regular polygon of `n` sides inscribed in the circle `= (1)/(2) na^(2) sin ((2pi)/(n)) = na^(2) sin.(pi)/(n)...

Correct Answer - B Let a and b the roots of `x^(2) -7 x + 8 = 0` Then `a + b = 7, ab = 8` Also, `C = 60^(@)`...

Correct Answer - D `(d)` Number of diagonals passing through centre `=6` Number of rectangles `="^(6)C_(2)=15`

Correct Answer - C `(c )` We have `pi-(2pi)/(n)=(5pi)/(6)` `implies (pi)/(6)=(2pi)/(n)` `impliesn=12` `:.` Number of diagonals `="^(10)C_(2)-12=54`

Correct Answer - (A) Q, (B) S, (C) Q, (D) P

Correct Answer - x-2=0, 6x-7y+79=0, 6x+7y+65=0

Column‘A’ Column ‘B’ (1) <table> (D) It is used to indicate  creation of a table (2) <caption>  (B) It is used to speedy a  table heading  (3) <tr>  (C) Create each row of the table  (4) <th>  (A) It indicates table...

Solution: A polygon of n sides has n vertices. By joining any two vertices of a polygon, we obtain either a side or a diagonal of the polygon. Number of...

Correct Answer - 82.8 `cm^(2)`