Answer:
C = 6pi ft or approximately 18.84 ft
Step-by-step explanation:
The circumference of a circle is found by
C = 2*pi*r
C = 2*pi *3
C = 6pi
If we approximate pi
C = 6 (3.14)
C =18.84 ft
Answer:
2nd option is correct as it has represented all the terms of the expression.
U need to draw the orthonormal system to indicate
The answer of this question is b
Answer:
Perimeter is 17.07
Step-by-step explanation:
We know that DF = EF = 5 cm, since D and E are the midpoints of AC and AB, both of which are 10 cm in length.
We need to use the Pythagorean theorem to get the length of DE.

So the perimeter of DEF is 5 + 5 + 7.07 = 17.07