Exam 26: Area Measure

Find in square centimeters the area of the opening of a circular duct with a diameter of 10.4 centimeters. Round the answer to the nearer thousandth.

A rectangular duct must connect with a circular duct. The rectangular duct measures 4 inches by 5 inches. The circular duct has a diameter of 4.6 inches. What is the difference in the area of the rectangular duct and the area of the circular duct in square inches? Round answer to the nearer thousandth.

A windowpane made of glass for a hothouse added to the back of a house has 4.8 sq ft of glass. The pane has a length of 2.9 feet. What is the height of this pane? Round the answer to the nearer hundredth foot.

Find the area of a rectangle in square inches with a length of 20 inches and a width of 10 inches.

Find the area of a circle with a diameter of 7 inches. Round the answer to the nearer hundredth square inches.

For proper airflow, a rectangular duct must have an area of 147.25 sq cm. The duct must be placed in the wall and must have a width of 9.5 centimeters. What must the height of the duct opening be?

To solve for area, determine the correct formula to use and substitute values for the terms in the formula.

The area of a triangle is 1/2 times the base times the height.

A triangle has an area of 28 square feet and a base of 7 feet. What is the height of the triangle?

A square duct has sides of 8.5 centimeters. What is the area of the duct opening in square centimeters?