Answer:
Step-by-step explanation:
( -1 + 4)/(4 + 4)= 3/8
Answer:
The area of a sector GHJ is 
Step-by-step explanation:
step 1
we know that
The area of a circle is equal to

we have

substitute


step 2
Remember that the area of a complete circle subtends a central angle of 360 degrees
so
by proportion find the area of a sector by a central angle of 65 degrees

Use 

Answer:
3
Step-by-step explanation:
4.5/3x2=3
or for conforming
7.5/5x2
sry if wrong
The greatest common factor?
it would be 9
68*21
70*20
1400
OR
68*21
1428
1430