Answer:
i think its b i'm not entirely sure
Step-by-step explanation:
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Formula
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a² + b² = c²
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Find the missing leg.
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15² + b² = 18²
b² = 18² - 15²
b² = 99
b = √99
b = 9.95 cm
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Answer: 9.95 cm
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the answer is 10.6875 you divide 4. 75 and the number 100 them multiply your answer by 225
glad to help any time
Use the attached figure to guide yourself through the explanation. In the figure:

.
We know that:

Also remmeber that the area of a triangle is:

The hegiht is shown in the figure in red, the base is just the b side.
Using the angle C the area of the triangle is:

Now taking the derivative of the area 2A with respect to t we have:

Replacing with the right values:

yields:
19, 21, 23 are the consecutive odd numbers.
I did this by thinking that 63 divided by 3 is 20. Then I went to 21, and added it to 23, I got 44, so then I added 19 and got 63. (Adding 25 didn't help so I tried 19)