(Day 8) Find the value of each variable. The dot represents
the center.

a =
b=
C=

Step-by-step explanation:

a=180-122=58°

Let ABC be the triangle in which BC is diameter.

Diameter always make angle 90° on the circumference.

so b=90°

∠B=1/2×58=29°

29+b+c=180

29+90+c=180

c=180-119=61°

3100

step-by-step explanation:

answer: a

step-by-step explanation: the answer is a due to the rule of symmetry; that a line of symmetry must divide a figure into 2 pieces that are the exact same, only reflected over a line of symmetry. b and c do not have lines of symmetry and would not divide the figure evenly, thus making the answer a.