Answer: 340 square feet
Explanation: the pool is 60 square feet (6x10)
The whole back yard is 400 square feet. 400-60=340 square feet
324
Because you multiply 9 by 36
False, just because they have a same base doesn't mean they are exactly the same. Remember a cylinder has parallel bases that are congruent and a cone does not have that. <span />
Answer:
Step-by-step explanation:
By Pythagoras Theorem:
![x = \sqrt{ {9}^{2} - {8}^{2} } \\ \\ x = \sqrt{81 - 64} \\ \\ x = \sqrt{17}](https://tex.z-dn.net/?f=x%20%3D%20%20%5Csqrt%7B%20%7B9%7D%5E%7B2%7D%20%20-%20%20%7B8%7D%5E%7B2%7D%20%7D%20%20%5C%5C%20%20%5C%5C%20x%20%3D%20%20%5Csqrt%7B81%20-%2064%7D%20%20%5C%5C%20%20%5C%5C%20x%20%3D%20%20%5Csqrt%7B17%7D%20)