Peltier

The measure of two angles of a triangle are 35* and 45*. What is the measure of the third angle of the triangle? A. 95* B. 100* C. 105 D. 110*

A box in a college bookstore contains books, and each book in the box is a history book, an English book or a science book. If one-third of these books are history books and one-sixth are English books, what fraction of the books are science books?

The is 100* However, will the angles always add up the 180*

I see. I am now returning back to school after years. I just could not remember how to solve this. Thank you very much

Thank You