Question

The vertices of a triangle lie on the circumference of a circle. If its sides are 2.5 cm, 6 cm, and 6.5 cm, what is the area of the circle (in​

Answer 1

Step-by-step explanation:

The electric field at the center due to each 3C will be KQ/r

2

directed away from the charge at the center.

since all the 3 electric fields of equal magnitude inclined at 120

o

and so the results of any two electric fields cancel the third electric field and thus the resultant electric field at the center of the circle becomes zero.

Hence force on 1C becomes zero

Hope its help..

Answer 2

Answer:

9π

Step-by-step explanation:

As given triangle sides makes a right angled triangle,

side 6 cm lies along the diameter of circle

hence radius becomes 3 cm

Area of circle= πr^2= π (3)^2 = 9π