Deck 27: Area of Triangles and Trapezoids

Question 1

Area of a Cylinder = Area of a Trapezoid =
A triangular shape with a base of 15" and a height of 7" is cut from sheet metal. What is the shape's area, in square inches?

Answer 1

52.5

Question 2

Find, in square feet, the floor area illustrated in this diagram.

Answer 2

128

Question 3

A trapezoid that is 9.1 cm high has a lower base of 12.4 cm and an upper base of 8 cm. What is the trapezoid's area, in square cm? Round the answer to the nearest tenth.

Answer 3

92.8

Question 4

What is the area, in square inches, minus the cutout? Express the answer to the nearest thousandth.

Question 5

Find the total area of this template. Carry the answer to one decimal place.

Question 6

Area of a Cylinder = Area of a Trapezoid =
A triangular piece of sheet metal is 47.5 cm long and 66.2 cm high. Find, in square centimeters, the area of the piece. Round the answer to the nearest hundredth.

Question 7

A piece of sheet metal is punched as shown. Find the area remaining after the punching operation. Express the answer to the nearest hundredth.

Question 8

Twenty support gussets are cut 12" high with bases of 5 1/4" and 3 3/4". What is the area of all gussets, in square inches?

Question 9

Find, in square inches, the amount of waste in this piece of sheet metal. Express the answer to the nearest hundredth.

Question 10

What is the surface area of plane A on this set up block?