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2 answers:
Answer:
12.75ft²
Step-by-step explanation:
<u>Step 1: Determine the formula for the area of a trapezoid</u>
The formula for the area of a trapezoid is A=1/2(b1+b2)*h where b1 and b2 are the bases of the trapezoid and h is the height of the trapezoid.
<u>Step 2: List given information</u>
b1=8ft
b2=9ft
h=1.5ft
<u>Step 3: Plug given variables into the formula</u>
A=1/2(b1+b2)*h
A=1/2(8+9)*1.5
A=1/2(17)*1.5
A=8.5*1.5
A=12.75
So the area of the seat is 12.75ft²
Answer:
12.75 feet
Step-by-step explanation:
To find the area of a trapezoid, you must take the first base plus the second base and then multiply by the height divided by 2. [(8 * 9)1.5/2] Doing this will get you 12.75. Then, you add the label from the problem which is feet.
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