Area of a Triangle (one circle)
A triangle has a base of 8 inches and a height of 5 inches. What is the area of this triangle?
A = 20in squared
A parallelogram has a base of 7.8 feet and a height of 3 feet. What is the area of this parallelogram?
A = bh A = (7.8)(3)
A = 23.4 feet squared
A trapezoid has a base of 8 feet and a base of 12 feet. The height of the trapezoid is 4 feet. What is the area of the trapezoid?
A = (8 + 12)(4) divided by 2
A = (20)(4) divided by 2
A = (80) divided by 2
A = 40 feet squared
A triangle has a base of 14ft and a height of 6ft. What is the area?
A = 14 * 6 / 2
A = 42ft squared
A parallelogram has a base of 14 feet and a height of 7 feet. What is the area of this parallelogram?
A = bh A = (14)(7) A = 98 feet squared
A trapezoid has a base of 3 inches and a base of 9 inches. The height of the trapezoid is 7 inches. What is the area of the trapezoid?
A = (9 +3)(7) divided by 2
A = (12)(7) divided by 2
A = (84) divided by 2
A = 42 inches squared
A triangle has an area of 24in squared and a base of 6 in. What is the height?
A = b * h / 2
24 = 6 * h / 2
height is 8in
A parallelogram has an area of 45 square inches and a base of 5 inches. What is the height of this parallelogram?
A = bh
45 = (5)h
height = 9 inches
A trapezoid has a base of 4 meters and a base of 3 meters. The height of the trapezoid is 2.2 meters. What is the area of the trapezoid?
A = (4 + 3)(2.2) divided by 2
A = (7)(2.2) divided by 2
A = (15.4) divided by 2
A = 7.7 meters squared
Kendrick is putting a border around a circular flowerbed that has a radius of 5 feet. What length of border, in feet, does Kendrick use?
31.4 feet
A repair crew is putting plastic netting to mark a rectangular work zone around a section of sidewalk that needs repair. The work zone is 4 yards wide. If the workers use 26 yards of netting, how long is the work zone?
9 yards
Mr. Franklin makes a round shield for an actor in the school play. He paints the shields surface silver.
How much paint, in square inches, will Mr. Franklin need, if the shield has a diameter of 28 inches?
615.44 in2
Quentin builds a model of a sailboat. A triangular sail of the boat with a base of 5 feet and a height of 15 feet dimensions shown. Quentin makes a scale drawing of the sail to cut cloth for his model.using a scale that one inch represents 2.5 feet. What's the area of the model sail.
12 squared inches
Ramon wraps a ribbon completely around the length and width of a rectangular box. The box has a length of 3/4 foot. If Ramon uses 1 5/6 feet of ribbon, how wide is the box?
1/6 foot
The length of a trapezoids leg's are both 6 cm. One of it's bases is 5 cm and the other base is 11 cm. The height of the trapezoid is 8 cm. What is the area of the trapezoid?
A = (5 + 11)(8) divided by 2
A = (16)(8) divided by 2
A = (128) divided by 2
A = 64 meters squared