Find the area of an equilateral triangle with side equal to 10 cm. (Unit = square cm.)

Given that 𝐴𝐵𝐶𝐷 is a parallelogram and 𝐷𝐸 = 13 cm, find the length of 𝐷𝐹. (Unit = cm.)

If 𝐶𝐵 = 23 cm, 𝐴𝐸 = 16 cm, and 𝐴𝐹 = 20 cm, find the area of the parallelogram 𝐶𝐵𝐴𝐷 and then determine the length of 𝐶𝐷 to the nearest hundredth.

In Figure, ABCD is a parallelogram, AE ⊥ DC and CF ⊥ AD. If AB = 16 cm, AE = 8 cm and CF = 10 cm, find AD.

Find the area of the following figure: (Unit = square m.)

Find the area of the following figure: (Unit = square m.)

Triangle ABC shown below is inscribed inside a square of side 20 cm. Find the area of the triangle. (Unit = square cm.)

A parking lot is constructed in the shape of a parallelogram. What is the area of the parking lot? (Unit = square ft.)

A parallelogram can be thought of as a combination of 2 triangles of equal area .
Area of 1 triangle = ½ x base x height.
Area of 2 triangles = 2x ½ x base x height = base x height.

A parking lot is constructed in the shape of a parallelogram. What is the area of the parking lot? (Unit = square ft.)

A parallelogram can be thought of as a combination of 2 triangles of equal area .
Area of 1 triangle = ½ x base x height.
Area of 2 triangles = 2x ½ x base x height = base x height.

Sherice plays the bass in a garage band. Sherice’s parents let her and her friends use a section of their garage in the shape of a parallelogram for rehearsals. How much space in square feet does Sherice’s band have to practice in?

A parallelogram can be thought of as a combination of 2 triangles of equal area .
Area of 1 triangle = ½ x base x height.
Area of 2 triangles = 2x ½ x base x height = base x height.

Sherice plays the bass in a garage band. Sherice’s parents let her and her friends use a section of their garage in the shape of a parallelogram for rehearsals. How much space in square feet does Sherice’s band have to practice in?

A parallelogram can be thought of as a combination of 2 triangles of equal area .
Area of 1 triangle = ½ x base x height.
Area of 2 triangles = 2x ½ x base x height = base x height.

The wall in is to be painted. If one can of paint covers 110 square feet, how many cans of paint will be needed if only one coat of paint is applied?

A 7-foot by 3-foot doorway is to be cut into the trapezoid shaped wall shown. What is the area of the wall, without the doorway? (Unit = square ft.)

The triangular swimming pool shown is surrounded by a concrete patio. Find the area of the patio. Round to the nearest tenth if necessary. (Unit = square m.)