GeoGebra Classroom

# G.GCI.2 Angle From 2 Secants (V2)

Interact with the applet below for a few minutes. LARGE POINTS are MOVEABLE at any time. Then answer the questions that follow.

## 1.

Suppose the entire pink arc measures 200 degrees and the entire blue arc measures 50 degrees. What would the measure of the manila angle be?

## 2.

Suppose the entire pink arc measures 250 degrees and the entire blue arc measures 150 degrees. What would the measure of the manila angle be?

## 3.

Suppose the entire pink arc measures 280 degrees and the manila angle measures 60 degrees. What would the measure of the blue arc be?

## 4.

How does the measure of the pink angle compare with the measure of the pink arc it intercepts? How do you know?

## 5.

How does the measure of the blue angle compare with the measure of the blue arc it intercepts? How do you know?

## 6.

Suppose the measure of the pink arc = x & the measure of the blue arc = y. Write an expression (containing x and or y) that give the measure of the manila angle.