From everyday questions to specialized queries, IDNLearn.com has the answers. Ask your questions and receive comprehensive, trustworthy responses from our dedicated team of experts.
Answer:
a = 40 degrees
Step-by-step explanation:
the inscribed angle of 200 degree arc is 100 degrees.
the sum of all the interior angles of a triangle is 180 degrees so:
angle a = 180 - 100 - 40 = 40 degrees