AthenaSinclair AthenaSinclair

26-03-2018
Mathematics

contestada

Choose an equation for the relationship between the measures of the angles and arcs.

Choose an equation for the relationship between the measures of the angles and arcs class=

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Critzlez Critzlez

26-03-2018

Because ∠2 is a diameter away from arc ST, ST is two times larger than ∠2. So, the answer is:

m∠2 = 1/2(mST)

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budwilkins budwilkins

26-03-2018

Inscribed angles (angles on the line of the circle) are one half of its opposite arcs.
Therefore m <2 = 1/2 (mST), the 2nd one down (or middle) answer.
For example, if ST were 80°, then m <2 would be 40°.

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