Answer:
x=7.8
Step-by-step explanation:
take 49 degree as reference angle
using cos rule
cos 49=adjacent/hypotenuse
0.65=x/12
0.65*12=x
7.8=x
Answer:
68 is the perimeter
the answer would be 48.17
Step-by-step explanation:
to find the perimeter you have to add all the sides
Answer:
-20.5
Step-by-step explanation:
Using a basic calculator, you divide 10.25 by -.5 which easily gives -20.5
Answer:
45 
Step-by-step explanation:
Multiply 9 · 10 = 90 then divided by 2 = 45
Answer: The answer is 6.28571 . . ..
Step-by-step explanation: We are given ti find the value of twice of pi into the palette.
We are familiar with the irrational number pi. It is defined as the ration of circumference of a circle to the diameter of the circle and its value is 22/7 or 3.14159 . . ..
Therefore, the value of 2 pi can be calculated as follows.

Thus, the value of 2pi is 6.28571 . . ..