Answer: Two figures are said to be similar if they are the same shape. In more mathematical language, two figures are similar if their corresponding angles are congruent , and the ratios of the lengths of their corresponding sides are equal.
Step-by-step explanation:
Use arccos...cos^-1 so
cos^-1 (0.8195)
it equals 34.96522689°
Answer:
121..??
Step-by-step explanation:
20 degrees. i have a protractor, and its really helpful! you should use one.
Answer:
648
Step-by-step explanation:
You can use a calculator or break it into smaller problems, then add them together
