Question

I need help with understanding this.

Answer 1

x = 6.

QU = 9.5.

Explanation:

RVZW is a kite

as ZU = 12 and ZV = 12 and V<RVZ and < RUZ are both right angles.

Therefore RU = RV.

As the radii ZW and ZY are at right angles to the chords RS and RQ they cut them in half so RS = RQ so:

3x + 1 = 19

3x = 18

x = 6.

QU = 1/2 * 19

= 9.5