Aconvex hexagon has exterior angles that measure 80° 68° 84° 56° and 40° which of the following is the measure of the sixth exterior angle? a. 32° b. 60° c. 180° b. 360°

A. 32°

Step-by-step explanation:

The sum of the exterior angles of a convex polygon always equals 360°. Thus,

x + 80 + 68 + 84 + 56 + 40 = 360

                               x + 328 = 360

                                         x = 32°

The sixth exterior angle of the hexagon is 32°.

Approximately 13 ft

Step-by-step explanation: For this, you have to do the Pythagorean Theorem. First set up an equation. That equation is a squared+b squared=c squared. Next, plug in values. A=12 and b=4. The equation becomes 12 squared+4 squared=c squared. Do the math and you'll get 144+16=c squared. Add and get 160=c squared. Then do the square root of both sides and you'll get 12.649=c. Round to nearest whole number to get approximately 13 ft. You can also represent it as the square root symbol with 160 inside, like this(√160).