Answer:
A 65
Step-by-step explanation:
The angle formed by two chords is 1/2 the sum of intercepted arcs
x = 1/2 (51+79)
x = 1/2(130)
x =65
Step-by-step explanation:
Alternate and corresponding angles.
Answer:
everyone got 6 pieces
Step-by-step explanation:
do you actually need a explanation?
Answer:
7
Step-by-step explanation:
7*4=28 which is the closest u can get to 30 with out going past it
Answer:

Step-by-step explanation:
x is the center of the circle.
the chord of length 12 can be splitted into two parts of 6 length each.
since the radius does not change when it touches another end of the circle, we can safely calculate our radius to be the hypotenuse of the triangle formed by the length of the chord and 3.
The explanation is given in the picture