What is the measure of YB ?

YB = 12

Step-by-step explanation:

The product of the measures of the parts of one chord are equal to the product of the measures of the parts of the other chord, that is

7YB = 6 × 14 = 84 ( divide both sides by 7 )

YB = 12

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°

the arc length is found by finding the circumference of the full circle (2xpixradius) and then dividing by 4 to find just one quarter of the circle (90 degrees).