The high temperature for one town last year was 78F. The low temperature for the same town was -3F. What was the difference between the high and low temperatures for the town last​ year?

What is the difference between regular convex and concave polygons

Me! i'm really confused the isosceles trapezoids, abcd and efgh, are similar quadrilaterals. the scale factor between the trapezoids is 2: 3, line gh = 6 centimeters, line ad = 8 centimeters, and line ab is three times the length of line dc . use complete sentences to answer the following prompts and include all of your calculations in your final answer. a. write a similarity statement for each of the four pair of corresponding sides. b. write a congruence statement for each of the four pair of corresponding angles. c. determine the perimeter for each of the isosceles trapezoids.

Is vi-cos = -sintrue? if so, in which quadrants does angle terminate?