The length of xy (the minor arc) is 15 cm. What is the circumference of OZ? O A. 94.2 cm
O B. 426 cm
O C. 180 cm
O D. 540 cm
O E. 360 cm
O F. 450 cm

E

Step-by-step explanation:

In any circle the following ratios are equal

= , that is

= = ( cross- multiply )

circumference = 15 × 24 = 360 cm → E

answer: (c) m∠qpo + (2x + 16)° = 180°

step-by-step explanation:

the opposite angles of a quadrilateral are supplementary.

so, ∠o + ∠q = 180°   and   ∠p + ∠r = 180°

since ∠r = 2x + 16°, we can use substitution as follows:

∠p + ∠r = 180°

∠p + (2x + 16)° = 180°