You didn't ask a question. That's just a statement.
Since the triangles make up a spinner, the triangles are isosceles.
The base is 2 cm and the perimeter is 10 cm.
The measure of the two legs can be determined from
2 + 2x = 10
Where is the length of the leg
Solving for x
x = 4
The area an isosceles is calculated using

where b is the length of the base
Substitute the values and multiply with the number of triangles in the spinner
Answer:
Jul 9, 2017 - First lets find the range of -2 sqrt(x - 3) + 8x cannot be < 3 or f(x) would not be real when x = 3 f(x) = 8 and for all other values of x f(x)
Step-by-step explanation: