The area of the shaded sector is one-fourth of the area of the whole circle so:

area of shaded region

The area of the shaded region is 9pi units^2
Answer:
D
Step-by-step explanation:
Answer:
234
Step-by-step explanation:
So what we know is that
5x+9x= students
This equation is saying that for every 5 boys there are 9 girls
we can then plug in 364 for the number of students and add like terms
This means that 14x=364
this means that x=26
This means that there are 26 sets of 5 boys and 9 girls
this means that there are
130 boys
234 girls
Answer:
x = 5
Step-by-step explanation:
Sum up all the angles in a triangle is 180 degree, so 4x + 135 + 25 = 180, solve for x get x = 5