(-7) negative 7 i had some of these questions in pre-algrebra
JD
House number on one side of a street are consecutive even integers. the sum of the first three house number on the street is 6216. what is the number of the third house
A = pi*r^2
(16/25)*pi = pi*r^2
16/25 = r^2
rt(16/25) = r
r = 4/5
C = 2pi*r
C = 2pi*(4/5)
C = (8/5) pi cm
B.)greater than five but less than six
Notice the picture below
now, if the arc "x" is 48°, and the arc across the circle is also 48°, then those chords are congruent, notice the chords in red