Answer:
Step-by-step explanation:
Because a and b are both opposite 45 degree angles, a=b. Using the Pythagorean Theorem we can say.

The total distance between the airplane and the runway is 14102 ft.
The total height distance between the airplane and the runway can be solved through the equation:
14,080 ft + 22ft = <span>
14102 ft</span>Since the runway is below sea level, it adds to the total distance.
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The surface area of the square bottom = L x W = 7 x 7 = 49 cm^2
The area for one of the triangles = 1/2 x base x height = 1/2 x 7 x 9 = 31.5 cm^2
There are 4 triangles, the total area for the triangles = 31.5 x 4 = 126 cm^2
Total area = base + triangles = 49 + 126 = 175 cm^2