The perimeter of a square is 4 times a side. Therefore, the perimeter of this square is 4 x 12 feet or 48 feet.
The equilateral triangle has the same perimeter as the square. Since the 3 sides of an equilateral triangle are equal, divide by 3 to find the length of one side. (48 feet) ÷3 = 16 feet (length of one side)

Gravity is the force that pulls things down whenever they are dropped. It is said that Isaac Newton
"discovered" the concept of gravity as an identifiable force while sitting under an apple tree and the obvious happened. Gravity is created by the mass of the earth. The pull of gravity is much less (about one- sixth) on the moon than on earth.

Because fuses are designed to prevent current overload at a specific level, a fuse with a high rating may not work properly for a circuit rated at a lower level.

Gears with their teeth together in mesh turn in opposite directions. Gear A turns Gear B in the opposite direction (right), and Gear B turns Gear C in the opposite direction (left).