Question

1.Write in the form of ax + by + c = 0 and indicate the values of a, b and c
2x + 3y = 4.37
2. Find the value of k, if x = 2, y = 1 is a solution of the equation 2x + 3y = k.
3.In a hot water heating system, there is a cylindrical pipe of length 28 m and diameter 5 cm. Find the total radiating surface in the system.
4. Find the total surface area of a hemisphere of radius 10 cm. (Use π = 3.14)
5. Find the area of a triangle, two sides of which are 8 cm and 11 cm and
the perimeter is 32 cm.
6.Sides of a triangle are in the ratio of 12 : 17 : 25 and its perimeter is 540cm. Find its area.

If a line intersects two concentric circles (circles with the same centre) with centre O at A, B, C and D, prove that AB = CD .

Define constant polynomial.

Write coefficient of x in - 4x-5.

coordinates of point P(3,-4).Write ordinate.

Answer 1

Answer:

only 2 questions I solved next question try urself