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2 answers:
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Answer:
a. 70 square centimeters
Step-by-step explanation:
The area of the composite figure = Area of trapezoid + Area of rectangle
Area of trapezoid = (a + b) h
= (12 + 13) × 5
= ×125
= 62.5
Area of trapezoid is 62.5
Area of rectangle = length ×breadth
= 5 × 2
= 10
Area of rectangle is 10
The area of the composite figure = 62.5 + 10
= 72.5
To 1 significant figure, the area of the composite is 70.