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3 years ago

Find the measure of the indicated angle

Mathematics

1 answer:

Romashka-Z-Leto [24]3 years ago

5 0

Angle A is 78 because Ab is equal to the Ac

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professor190 [17]

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2 years ago

|c- 24| = 7c<br><br> :D :D :D

Ivanshal [37]

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3 years ago

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adoni [48]

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3 years ago

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In circle A below, chord BC and diameter DAE intersect at F. If arc CD = 46° and arc BE = 78°, what is m_BFE? D B А

wel

Given:

Consider the below figure attached with this question.

In circle A below, chord BC and diameter DAE intersect at F.

The arc CD = 46° and arc BE = 78°.

To find:

The measure of angle BFE.

Solution:

According to intersecting chords theorem, if two chords intersect inside the circle then the angle on the intersection is the average of intercepted arcs.

Using intersecting chords theorem, we get

$m\angle BFE=\dfrac{1}{2}(m(arcCD)+m(arcBE))$

$m\angle BFE=\dfrac{1}{2}(46^\circ+78^\circ)$

$m\angle BFE=\dfrac{1}{2}(124^\circ)$

$m\angle BFE=62^\circ$

Therefore, the measure of angle BFE is 62°.

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2 years ago