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28-11-2021
Mathematics

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If mCA = 50° and mER = 40⁰, what is the m∆CSA ?

If mCA 50 and mER 40 what is the mCSA class=

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mhanifa mhanifa

28-11-2021

Answer:

45°

Step-by-step explanation:

Given:

mCA = 50°
mER = 40⁰

Angle formed by intersecting chords is the half the sum of arc measures formed by same chords:

m∠CSA = m∠ESR = 1/2(mCA + mER) = 1/2(50° + 40°) = 45°

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