Area and Perimeter of Rectangles and Triangles

Front

What is the formula for the perimeter of a rectangle?

Back

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

Tags

CCSS.4.MD.A.3

Front

What is the formula for the area of a rectangle?

Back

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

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Front

What is the formula for the area of a triangle?

Back

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

Tags

CCSS.6.G.A.1

Front

How do you find the perimeter of a rectangle?

Back

To find the perimeter of a rectangle, add up the lengths of all the sides.

Tags

CCSS.4.MD.A.3

Front

How do you find the perimeter of a triangle?

Back

To find the perimeter of a triangle, add up the lengths of all the sides.

Tags

CCSS.3.MD.D.8

Front

What is the unit of measurement for area?

Back

The unit of measurement for area is square units, such as cm², m², etc.

Tags

CCSS.3.MD.C.6

Front

What is the unit of measurement for perimeter?

Back

The unit of measurement for perimeter is linear units, such as cm, m, etc.

Front

If a rectangle has a length of 10 cm and a width of 5 cm, what is its area?

Back

The area is A = 10 cm × 5 cm = 50 cm².

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Front

If a triangle has a base of 8 cm and a height of 5 cm, what is its area?

Back

The area is A = \frac{8 cm \cdot 5 cm}{2} = 20 cm².

Tags

CCSS.6.G.A.1

Front

What is the perimeter of a rectangle with a length of 10 cm and a width of 5 cm?

Back

The perimeter is P = 2(10 cm + 5 cm) = 30 cm.

Tags

CCSS.4.MD.A.3