Question

A circle is inscribed inside an equilateral triangle. then prove that 'radius of circle is 3 times of the side of triangle 6 6 А B С C​

Answer 1

Step-by-step explanation:

Psychology is the scientific study of the mind and behavior. Psychologists are actively involved in studying and understanding mental processes, brain functions, and behavior.

Answer 2

⇒  Here, AB=BC=AC=12cm

⇒  Let OP=OR=OQ=r

⇒ We have O as the incenter and OP,OQ and OR are equal.

⇒  ar(△ABC)=ar(△OAB)+ar(△OBC)+ar(△OCA)

43×(side)2=(21×OP×AB)+(21×OQ×BC)+(21×OR×AC)

⇒  43×(12)2=(21×r×12)+(21×r×12)+(21×r×12)

⇒  43×(12)