Perimeter Test

Front

What is the formula for calculating the perimeter of a triangle?

Back

The perimeter of a triangle is calculated by adding the lengths of all three sides: P = a + b + c.

Front

If a triangle has sides of lengths 12 in, 7 in, and 21 in, what is its perimeter?

Back

The perimeter is 40 inches (12 + 7 + 21 = 40).

Front

What is the perimeter of a regular polygon with 6 sides, each measuring 7 units?

Back

The perimeter is 42 units (6 sides x 7 units each = 42).

Front

How do you find the length of one side of a triangle if you know the perimeter and the lengths of the other two sides?

Back

Subtract the sum of the known sides from the perimeter: Length of the third side = Perimeter - (Side1 + Side2).

Front

What is the perimeter of a shape with sides measuring 10, 15, and 18 units?

Back

The perimeter is 43 units (10 + 15 + 18 = 43).

Front

A triangular sign has a perimeter of 70 inches, and two sides are each 19 inches. How do you find the length of the third side?

Back

Subtract the sum of the two known sides from the perimeter: Third side = 70 - (19 + 19) = 32 inches.

Front

What is the definition of perimeter?

Back

Perimeter is the total distance around the outside of a shape, calculated by adding the lengths of all its sides.

Front

What is the perimeter of a square with each side measuring 5 units?

Back

The perimeter is 20 units (4 sides x 5 units each = 20).

Front

How do you calculate the perimeter of a rectangle?

Back

The perimeter of a rectangle is calculated using the formula: P = 2(length + width).

Front

If a triangle has a perimeter of 60 inches and one side is 20 inches, what is the combined length of the other two sides?

Back

The combined length of the other two sides is 40 inches (60 - 20 = 40).