Answer:
12+8+7=27
Step-by-step explanation:
just normal addition
I've actually just learned this. We would set up the proportion as X/9=36/X so after we cross multiply we get x^2=324. Then we find the square root of both sides to simplify. And using my calculator the square root of x^2 is just x. And the square root of 324 is 18. So the final answer is x=18 or the geometric mean is 18.
Answer:
Step-by-step explanation:
Angle DAB is equivalent to angle DCB. The answer is 65°
