Answer:
14. 48m²
15. 180in²
16. 32.4m
17. 325yd²
18. 2,863.44mi² or 2,985.94mi² or 2,832.81mi² or 2955.31mi² (Please check solution)
19. 25mm
20.(Refer to image 1)
21. (Refer to image 2)
22. 227ft²
23. 84cm²
Explanation:
14.
A = bh
A = 12m x 4m
A = 48m²
15.
A = bh
A = 12in x 15in
A = 180in²
16. For finding the height we need to use the formula:
m (This is only meters because we are solving for the height and not the Area).
17.
A = bh
A = 15 x
A = 325yd²
18. Please correct me if I'm wrong, because I can't seem to read the base properly. Not sure if that's 46.75 or 48.75 or 46.25 or 48.25. So i'll just make an answer for all.
A = bh
A = 46.75 x 61.25
A = 2,863.44mi²
or
A = 48.75 x 61.25
A = 2,985.94mi²
or
A = 46.25 x 61.25
A = 2,832.81mi²
or
A = 48.25 x 61.25
A = 2955.31mi²
19.
20. Refer to image
21. Refer to image
22. To find the area of the shaded area we need to use two different formulas.
We will start by computing for the area of the parallelogram.
A = bh
A = 12ft x 4ft
A = 48ft²
Now we need to solve for the area of the rectangle.
We will use the formula:
A = L x W
A = 25ft x 11 ft
A = 275ft²
Now that we have both areas, we can then find the area of the shaded area by subtracting the two areas.
275ft² - 48ft² = 227ft²
23. Similar to question 22, but now we will use the formula for the area of a square.
We will use the formula:
A = S²
A = 6cm²
A = 36cm²
Now we solve for the parallelogram.
A = bh
A = 15cm x 8cm
A = 120cm²
Now we subtract both areas.
120cm² - 36cm² = 84cm²