1. To find the length of each side of a square field when its perimeter is 100 meters, you can use the formula for the perimeter of a square, which is four times the length of one side (S).
Perimeter of square = 4S
Given that the perimeter is 100 meters:
4S = 100
Now, divide both sides by 4 to find the length of each side:
S = 100 / 4
S = 25 meters
So, each side of the square field is 25 meters long.
2. To find the perimeter of a triangle with sides 3 cm, 4 cm, and 5 cm, simply add the lengths of all three sides together:
Perimeter = 3 cm + 4 cm + 5 cm
Perimeter = 12 cm
The perimeter of the triangle is 12 cm.