Question

What is the measure of STY in oo below? 130 310 230 50

Answer 1

The correct answer is option B. 310°

Explanation:

From the figure we can see that, a circle with center o.

And an arc SY with central angle 50°

To find the measure of arc STY

From the figure we can write,

arc SY + arc STY = 360

measure of arc STY = 360 - measure of arc SY

= 360 - 50 - 310°

Therefore the correct answer is option B. 310°

Answer 2

B. 310°

EXPLANATION

The sum of angles in a circle is 360°

From the diagram, the measure of arc SY is 50°

The measure of arc STY plus the measure of arc SY is 360°

To find the measure of arc STY, we subtract 50° from 360° to get:

Measure of arc STY

`= 360 \degree - 50 \degree`

This simplifies to

`310 \degree`The correct answer is B 310°