Area of a Trapezoid Worksheet: Grade 5
Focus: Whole numbers, formula substitution, and grid counting. Standard: CCSS.MATH.CONTENT.5.G / 6.G
A trapezoid has a top base of 4 cm, a bottom base of 8 cm, and a vertical height of 5 cm. What is its area?
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Step 2: Multiply by height: 12 × 5 = 60
Step 3: Divide by 2: 60 / 2 = 30 cm²
Find the area of a right trapezoid where base a = 6 inches, base b = 10 inches, and the perpendicular straight side has height h = 4 inches.
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A garden flowerbed is shaped like a trapezoid. The two parallel fences are 7 meters and 11 meters long. The walking distance straight across from fence to fence is 6 meters. Calculate the area of the flowerbed.
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An isosceles trapezoid has bases measuring 5 feet and 15 feet. The perpendicular height between bases is 8 feet. The side legs are 9.4 feet each. What is the area? (Hint: Be careful which numbers you use!)
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Area = ½ × (5 + 15) × 8 = ½ × 20 × 8 = 10 × 8 = 80 ft²
On a grid where each square represents 1 square meter, a trapezoid has base 1 spanning 3 grid units, base 2 spanning 9 grid units, and altitude of 4 grid units. Find its area in square meters.
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Two trapezoids are taped together along their slant edges to form a single parallelogram with base 16 cm and height 7 cm. If both trapezoids are identical, what is the area of just one of the trapezoids?
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Area of 1 trapezoid = 112 / 2 = 56 cm²