In the figure below, triangle ABC is a right triangle, and quadrilateral CDEF is a square. If mCAB = 51°, what is mACF?

Why is terracing used in southeast asian agriculture?

Which of the following best describes the purpose of a nation’s boundaries? a. to limit the movement of goods and people b. to make it easier for cartographers to create maps c. to make the movement of goods and people easier d. to prevent other countries from invading territory

In 1200 bce, the egyptian empire was declining as the civilization was beginning in mesoamerica. a. maya b. oaxaca c. olmec d. teotihuacan