Answer:
(half * base 1 * base 2)/height
base 1 is 6 and base 2 is 9
get the height from similarity
6/9 = 8/CE
therefore CE = 72/6
Answer:
C) 
Step-by-step explanation:
Use the Angle Addition Postulate to figure this out:

165° = (x + 15)° + (9x)°
165° = (15 + 10x)°
- 15° - 15°
_____________
![\displaystyle \frac{150°}{10} = \frac{[10x]°}{10} \\ \\](https://tex.z-dn.net/?f=%5Cdisplaystyle%20%5Cfrac%7B150%C2%B0%7D%7B10%7D%20%3D%20%5Cfrac%7B%5B10x%5D%C2%B0%7D%7B10%7D%20%5C%5C%20%5C%5C)
[Plug this back into the modeled expression for the
to get the angle measure of 30°]; 
I am joyous to assist you anytime.
Answer: d
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Step-by-step explanation:
according to the picture we have:
x.y=4.7
(7)x(7)y=49xy=(49)(4.7)=230.3