Lengths of: equal side+equal side+base = perimeter
Perimeter of a triangle = (length of the first side) plus (length of the second side) plus (length of the third side)
I'm assuming that you mean the area of the triangle. You do not need the entire perimeter. The formula is 1/2 bh. b=base, h=hight
you add the sides together . a /\b a+b+c /_\ c
There is no reason for the perimeter of a triangle to have any relation to the perimeter of an unrelated rectangle!
a + b + c
the formula is 1side multiply by 3
The perimeter formula of a triangle is the sum of the lengths of all three sides. Mathematically, it can be expressed as P = a + b + c, where P is the perimeter and a, b, and c are the lengths of the three sides of the triangle.
Perimeter of a triangle = (length of side #1) + (length of side #2) + (length of side #3)
Add the lengths of each side together to get the perimeter.
Lengths of: equal side+equal side+base = perimeter
It depends on what the formula is for: the area or perimeter or some other characteristic.
The perimeter of a triangle is found by adding all 3 sides of the triangle. This is most commonly expressed using the formula for a triangle's perimeter: a+b+c=P. Where P is perimeter and a,b,and c are the three sides.
Area of triangle * 2 + perimeter of triangle * length.
Perimeter of a triangle = (length of the first side) plus (length of the second side) plus (length of the third side)
s is the semi-perimeter of the triangle. The total perimeter divided by 2.
The perimeter of a triangle is the sum of its 3 sides.