Answer:
2/7
Step-by-step explanation:
1x4=4
2x7=14
4/14 divided by 2 is 2/7 (simplified)
Answer:
10.21 feet.
Step-by-step explanation:
circumference of circle with diameter d is given by 
where r is the radius of the circle.
_____________________________
given
diameter = 6 1/2 = 13/2 feet
\thus, circumference of circle is calculated as following

Thus, circumference of given circle is 10.21 feet.
Answer:
32cm^2
Step-by-step explanation:
the formula for the area of a trapezois is S=(10+6)/2*4=32