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Elementary Geometry for College St...

6th Edition
Daniel C. Alexander + 1 other
ISBN: 9781285195698

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BuyFindarrow_forward

Elementary Geometry for College St...

6th Edition
Daniel C. Alexander + 1 other
ISBN: 9781285195698
Textbook Problem
19 views

Given: Tangent A B  and
A C to O
m A C B = 68 °
Find: a) m B C b) m B D C c) m A B C d) m A

Chapter 6.2, Problem 9E, Given: Tangent ABand AC to O mACB=68 Find: a)mBCb)mBDCc)mABCd)mA

To determine

(a)

To find:

mBC when AB and AC are tangent to O, mACB=68°.

Explanation

Corollary:

The measure of an angle formed by a tangent and a chord drawn to the point of tangency is one-half the measure of the two intercepted arc.

Calculation:

mBC when AB and AC are tangent to O, mACB=68°.

To determine

(b)

To find:

mBDC when AB and AC are tangent to O, mACB=68°.

To determine

(c)

To find:

mABC when AB and AC are tangent to O, mBC=136°.

To determine

(d)

To find:

mA when AB and AC are tangent to O, mBC=136° and mBDC=224°.

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