Answer:
yes
no
no
Step-by-step explanation:
552cm^2. sorry, my handwriting sucks.
This type of equations, having more than one variable (unknown), you have to specify for which variable you want the equation solved.
Answer:
2.75
Step-by-step explanation:
Answer:
x = 50°
y = 130°
z = 130°
Step-by-step explanation:
the central angle is equal to it's arc in degrees.
y = 180° - 50° = 130°