Answer:
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Step-by-step explanation:
You can find the complementary angle for 28° first, which is 90°-28°=62°. Since this is a right triangle, you can then use trigonometry to find x (the hypotenuse). You have the angle and the adjacent side, so plug and play:
cos 62° = 350 / x
x = 350 / cos 62°
x = 745.5 ft
Answer:
(b) Circle C is shown. Line segment A C is a radius with length 7 centimeters.
Step-by-step explanation:
Given



Required
Which circle could she use
To do this, we simply calculate the areas of all the given circles
The area of a circle is:

Where


The area is calculated as thus:





The area is calculated as thus:




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The area is calculated as thus:





The area is calculated as thus:




<em>From the calculations above; only the circle in option (b) has an area within the required range of 135 to 155cm^2</em>