Area and Perimeter of Rectangles and Triangles

Front

What is the formula for the perimeter of a triangle?

Back

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

Front

How do you calculate the perimeter of a rectangle?

Back

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

Front

What is the formula for the area of a rectangle?

Back

The area of a rectangle is calculated using the formula: A = l × w, where l is the length and w is the width.

Front

What is the formula for the area of a triangle?

Back

The area of a triangle is calculated using the formula: A = \frac{b \cdot h}{2}, where b is the base and h is the height.

Front

If a triangle has sides of lengths 10 cm, 12 cm, and 8 cm, what is its perimeter?

Back

The perimeter is 10 cm + 12 cm + 8 cm = 30 cm.

Front

If a rectangle has a length of 5 cm and a width of 4 cm, what is its area?

Back

The area is 5 cm × 4 cm = 20 cm².

Front

What is the difference between perimeter and area?

Back

Perimeter is the total distance around a shape, while area is the amount of space inside a shape.

Front

How do you find the perimeter of a rectangle?

Back

Add the lengths of all four sides or use the formula: P = 2(l + w).

Front

What is the perimeter of a triangle with sides measuring 7 cm, 9 cm, and 10 cm?

Back

The perimeter is 7 cm + 9 cm + 10 cm = 26 cm.

Front

If the base of a triangle is 6 cm and the height is 4 cm, what is its area?

Back

The area is \frac{6 cm \cdot 4 cm}{2} = 12 cm².