Abcd is a cyclic quadrilateral in which ab and dc are produced to meet at p. If angke adc= 80 degree and angledab=20 degree , then the anglepbc- anglepcb =???
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sum of all angle is 360 degree
[ you must have given the figure]
when the triangle is formed check that it there is another Triangle formed bcp now uses the formula and check the answer
[ you must have given the figure]
when the triangle is formed check that it there is another Triangle formed bcp now uses the formula and check the answer
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