Question

Plz tell the answer of this blank​

Answer 1

Answer:

s=a+b+c/2

area=✓s(s-a)(s-b)(s-c)

Answer 2

In geometry, Heron's formula (sometimes called Hero's formula), named after Hero of Alexandria, gives the area of a triangle when the length of all three sides are known. Unlike other triangle area formulae, there is no need to calculate angles or other distances in the triangle first.

Area of triangle = under root of s x (s-a) x (s-b) x (s-c)

Where a, b, c are sides of the triangle and s is half of the perimeter of the triangle

=> s= a + b + c /2

Hope it helps u

Please mark it as brainleist