Here are some formulas for perimeter. Looking at them, you can see that yes, you can multiply to find perimeter.
square = 4a
rectangle = 2a + 2b
triangle = a + b + c
circle = 2pi r
Chat with our AI personalities
To find the perimeter you add and to find the area we multiply.
Multiply the radius by itself, then multiply the result by Pi.
No.The perimeter of a plane shape is the sum of the lengths of all its sides.
you are suppose to MULTIPLY on area.
In geometry, Heron's (or Hero's) formula, named after Heron of Alexandria, states that the area A of a triangle whose sides have lengths a, b, and c is square root of semi perimeter multiply by semi perimeter minus a multiply by semi perimeter minus b multiply by semi perimeter minus c.