What is the area of a triangle in square units if base (b) = 11 and height (h) = 20? А = 5 base x height A.15.5
B. 31
C110
D 220​

In triangle abc, the length of side ab is 12 cm, the length of side bc is 5 cm, and the length of side ca is 9 cm. find the measure of angle a using the law of cosines.

Refer to interactive solution 17.45 to review a method by which this problem can be solved. the fundamental frequencies of two air columns are the same. column a is open at both ends, while column b is open at only one end. the length of column a is 0.504 m. what is the length of column b?

What is the slope of the line that contains the points (-2,1) and (0,-3)