1.

If DeltaABC, if "cos"(A)/(2)= sqrt((b+c)/(2c)) then

Answer»

area of triangle is `(1)/(2)ab`
circumradius is EQUAL to `(1)/(2)c`
area of triangle is `(1)/(2)BC`
circumradius is equal to `(1)/(2)a`

ANSWER :A::B


Discussion

No Comment Found