Geometry B, Assignment 4. Area of Triangles and Rhombuses

In a triangle the base is 4 inches and the height is 6 inches. Find the area.

12 in.²

The legs of a right triangle measure 4 and 6 inches. The area of the triangle is:

12 in.²

The perimeter of an equilateral triangle with a side of 6 inches is:

18 in.

Find the area of a rhombus with diagonals 9 ft. and 12 ft.

54 sq. ft.

The lengths of the sides of a right triangle are a and b, and the hypotenuse is c. Find the area of the triangle. a = 2√3 ft.; c = 4 ft. a = sq. ft.

2 sqrt 3

The legs of a right triangle measure 5√2 cm and 4√2 cm. Find the area.

20 sq. cm

If the perimeter of an equilateral triangle is 30 ft, what is the area?

25√3 sq. ft.

The area of a right triangle with one leg measuring 5 ft. and hypotenuse measuring 13 ft. is:

30 ft.²

Find the height of a triangle whose base is 5 inches and area is 12 square inches.

4 4/5 in.

The area of a triangle is 10 square inches and its height is 5 inches. Find the base.

4 in.

The lengths of the sides of a right triangle are a and b, and the hypotenuse is c. Find the area of the triangle. b = 2 in.; c = 6 in. A = sq. in.

4 sqrt 2

The perimeter of an equilateral triangle is 12 feet. Find the area of the triangle.

4√3 square feet

If the area of an equilateral triangle is 9√3 sq ft, how long is a side?

6 ft.

The length of a side in an equilateral triangle is 5 inches. Find the area of the triangle.

6.25√3 square inches

Find the area of a triangle whose base is 2√3 in. and height is 3√3 in.

9 in.²

In this lesson you will learn more about the properties and characteristics of triangles and squares.

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