Answer:
9) 45 cm²
10) 7 cm/ft²
Explanation:
9) ½(sum of // sides) × height
½(6 + 12) × 5
½(18) × 5
9 × 5
45 cm²
10) 28cm/4ft²
7 cm/ft²
= 45 cm^2
7 cm per ft^2
The area of a trapezoid is found by
A = 1/2 (b1+b2)h
where b1 and b2 are the lengths of the bases and h is the height
A = 1/2(6+12)*5
A = 1/2 (18)5
The unit rate is 28 cm/ 4 ft^2
5.3m questions
6.9m answers