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In the figure m(arc BC) = 137°M(arc PQ) = 41°find measure of angle BAC.By property of=m BAC=1/2=[ ]-[ ]m BAC=1/2=[ ]-[ ]m BAC =[ ] |
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Answer» (1) It is given that line AB is TANGENT to the circle at A. ∴ ∠CAB = 90º (Tangent at any POINT of a circle is perpendicular to the radius throught the point of contact) Thus, the MEASURE of ∠CAB is 90º. |
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