Find the area of a triangle with legs that are 9mm 6mm and 12mm

Here we are given the three sides of the triangle.

So we have Heron's formula to find its area.

Heron's formula is given by :

where A, B and C are sides of triangle and S is semi perimeter which is given by,

plugging values of A, B and C to find S

S=13.5

Now plugging values of A, B , C and S in Heron's formula

A=26.14 mm²

Area of triangle is 26.14 mm².

x = 25/2304

step-by-step explanation:

part 1 answer = 8

part 2 answer = 72

step-by-step explanation:

part 1 explanation = add all of the numbers, then divide by how many numbers you have. so, 200/25 = 8.

part 2 explanation = not gonna lie, this is hard to explain, so just google how to do it.