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Chapter 9: Q7. (page 341)

In exercises 2-7 find the measure of the arc.

CDB铃�

Short Answer

Expert verified

a. The measure of an arc CDB铃� is 280.

Step by step solution

01

Step 1. Given information:

The given figure is,

02

Step 2. Concept used:

Following properties are used here,

The arc length of a circle can be calculated with the radius and central angle.

03

Step 3. Applying the concept:

Here, in the figure

鈭�CDB=360鈭�鈭�鈭�BOC=360鈭�鈭�80鈭�=280鈭�

Since

mCDB铃�=m鈭�CDB=280

Therefore, the measure of arc CDB is 280.

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Most popular questions from this chapter

Quad. ABCD is circumscribed about a circle. Discover and prove a relationship between AB+DC and AD+BC.

For each exercise draw a circle and inscribe the polygon in the circle.

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Draw 鈯�Owith perpendicular radii OX炉and OY炉. Draw tangents to the circle at X and Y.

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b. If OX=5, find OZ.
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