Question

zumere
13.
8.6 m
6.5 m
8.4 m
14.
9.5 mi
8.6 mi
15 mi
of a triangle:
$=\frac{1}{2}\bullet b\bullet h$
15.
17 ft
14 ft
16.
10 in
14.5 in
10.5 in
17.
18.5 mm
13.1 mm
17.2 mm
18.
9.8 yd
33.6 yd
35 yd
19.
of a trapezoid:
$\frac{1}{2}h(b_1 + b_2)$
5.5 m
9.4 m
7 m
13.7 m
20.
24 ft
21 ft
39.3 ft
26 ft
21.
6 cm
9.2 cm
10 cm
14 cm
22.
20.5 in
24.8 in
7.2 in
27 in

Explanation:

Step1: Calculate area of parallelogram (13)

Area = base × height = $8.6 \times 6.5$

Step2: Calculate area of parallelogram (14)

Area = base × height = $15 \times 8.6$

Step3: Calculate area of triangle (15)

Area = $\frac{1}{2} \times$ base × height = $\frac{1}{2} \times 14 \times 17$

Step4: Calculate area of triangle (16)

Area = $\frac{1}{2} \times$ base × height = $\frac{1}{2} \times 10.5 \times 10$

Step5: Calculate area of triangle (17)

Area = $\frac{1}{2} \times$ base × height = $\frac{1}{2} \times 18.5 \times 13.1$

Step6: Calculate area of triangle (18)

Area = $\frac{1}{2} \times$ base × height = $\frac{1}{2} \times 9.8 \times 33.6$

Step7: Calculate area of trapezoid (19)

Area = $\frac{1}{2} \times$ height × (sum of bases) = $\frac{1}{2} \times 7 \times (5.5 + 13.7)$

Step8: Calculate area of trapezoid (20)

Area = $\frac{1}{2} \times$ height × (sum of bases) = $\frac{1}{2} \times 21 \times (24 + 39.3)$

Step9: Calculate area of trapezoid (21)

Area = $\frac{1}{2} \times$ height × (sum of bases) = $\frac{1}{2} \times 9.2 \times (6 + 14)$

Step10: Calculate area of trapezoid (22)

Area = $\frac{1}{2} \times$ height × (sum of bases) = $\frac{1}{2} \times 7.2 \times (20.5 + 24.8)$

Answer:

1. $55.9 \text{ m}^2$
2. $129 \text{ mi}^2$
3. $119 \text{ ft}^2$
4. $52.5 \text{ in}^2$
5. $120.775 \text{ mm}^2$
6. $164.64 \text{ yd}^2$
7. $67.2 \text{ m}^2$
8. $664.65 \text{ ft}^2$
9. $92 \text{ cm}^2$
10. $163.08 \text{ in}^2$