The area of a circle is pi * radius squared, thus the area of the circle is 64(pi). Since we have a sector with 90 degree angle, the area of the sector is exactly 1/4 the area of the entire circle, or 16(pi)
Answer:
total sum is 90
Step-by-step explanation:
2z+5+5z-6=90
7z=90+6-5
z=91/7
z=13
A, because: 20x10 1/2=210
And 20x11 1/4=225
And 225-210=15
So thats the answer.
Answer:
0.009 is a decimal and 0.9/100 or 0.9% is the percentage for 9/1000.
Step-by-step explanation:
