LEARNING TASK 2-MEASURE OF AN ANGLE FORMED BY A SECANT AND A TANGENT
A. A tangent and a secant intersecting on the circle. The measure of the angle formed is one-half the measure of the Intercepted arc Example: mLAOB = 42 (AB)
Answer this: m[COB = 10 = 72 (1109) = 55° 300
B. Two secants intersecting inside the circle. The measure of the angle formed is one-half the sum of the Intercepted arc and its vertical angle. Example: m_MPC = 42 (MC + AC)
Answer this: mZTOB = :72 (110 + 50 ) = % (160) = 80°
C. Tangent and a secant intersecting outside the circle. The measure of the angle formed is one-half the absolute Value of the difference of the intercepted arcs. Example: m_DEF = m/KBP = / KP - MN/
Answer this =%2/120-40 / 60° 120° 22 ( 80 ) = 40 11o 30 500 c o 34 N P​