If the area of the circle is `A_1` and the area of the regular pentagon inscribed in the circle is `A_2,` then find the ratio `(A_1)/(A_2)dot`

The area of the circle and the area of a regular polygon inscribed the circle of n sides and of perimeter equal to that of the circle are in the ratio of

If A, A_1,A_2,A_3 are the areas of the inscribed and escribed circles of a DeltaABC, then

A_0, A_1 ,A_2, A_3, A_4, A_5 be a regular hexagon inscribed in a circle of unit radius ,then the product of (A_0A_1*A_0A_2*A_0A_4 is equal to

Regular pentagons are inscribed in two circles of radius 5 and 2 units respectively. The ratio of their areas is

If the whole surface area of a right circular cone be A_1 sq- unit andif its curved surface area be A_2 sq-unit, then the area of the base is (A_1-A_2) sq-unit.

Write the differences : Vitamin A_1 and Vitamin A_2

In each following cases, the amplitude of the first two oscillations A_1 and A_2 of a damped pendulum are given. What will be the amplitude of the pendulum in its third oscillation? (i) A_1=3.0 cm. A_2=2.4 cm (ii) A_1=5.0 cm, A_2=4.9 cm (iii) A_1=4.0 cm, A_2=2.0 cm

Let A_r ,r=1,2,3, , be the points on the number line such that O A_1,O A_2,O A_3dot are in G P , where O is the origin, and the common ratio of the G P be a positive proper fraction. Let M , be the middle point of the line segment A_r A_(r+1.) Then the value of sum_(r=1)^ooO M_r is equal to (a) (O A_1(O S A_1-O A_2))/(2(O A_1+O A_2)) (b) (O A_1(O A_2+O A_1))/(2(O A_1-O A_2) (c) (O A_1)/(2(O A_1-O A_2)) (d) oo

Prove that, if A_1 and A_2 are two events, which are not necessarily mutually exclusive then P(A_1 uu A_2) = P(A_1) + P(A_1 nn A_2)