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CLEMSON / Math / MATH 2160 / the interior angles in a regular polygon sum to 2160°. how many sides

the interior angles in a regular polygon sum to 2160°. how many sides

the interior angles in a regular polygon sum to 2160°. how many sides

Description

School: Clemson University
Department: Math
Course: Geometry for Elementary School Teachers
Professor: Allison stoddard
Term: Fall 2016
Tags: Math and geometry
Cost: 50
Name: Exam 1 Review
Description: This is what we went over for our exam 1. Use this to study for Final Exam
Uploaded: 04/24/2017
3 Pages 58 Views 0 Unlocks
Reviews


1. True or false a) All rectangles are squares b) The bases of a prism lie in parallel planes c) A line segment contains a finite number of points  d) If two distinct planes intersect, their intersection is a line e) A parallelogram has a4 obtuse angles f) A dodecahedron is a regular polyhedron formed with 20 congruent  equilateral triangles g) Any two points are collinear  2. How many total faces are in a pyramid with a decagon as its base? 3. What is the least number of edges that a prism may have? 4. One interior angle of a regular hexagon has how many degrees? 5. A prism has 10 total faces. How many vertices and edges does it have? 6. Two lines that are coplanar and have no points in common are  ___________________ 7. Explain how to derive an expression (formula) for the sum of the measures of  the interior angles of a polygon with n sides. 8. Sketch a triangular prism. Show that Euler’s formula hold for this figure. 9. If one interior angle of a regular polygon measures 135* a. How many sides does it have? b. How many diagonals does it have? 10.Draw a cubea. Name two edges parallel to edge AB b. Name two edges that are skew to AB c. Name the intersection of plane ABC and plane DHG d. Name the intersection of plane ABC and line DH 11.Sketch the following: a. A closed curve that is not simple b. 3 lines whose intersection is exactly 3 points c. A concave hexagon d. An equiangular quadrilateral 12.Name a property that holds true for all squares, but not for all parallelograms 13.If the measures of two angles of a triangle are 38®16’42” and 63®44’16”,  what is the measure of the third angle? 14.Explain what how tearing off the eges of a triangle and putting them all  together makes straight line.15.Determine the measures of the interior angles of this polygon. The two  bottom angle are 2x each and the rest of them are 5x each.  16.Find the missing measures  6 6 17.Find the measures of the given numbered angles in the figure below 7 5


One interior angle of a regular hexagon has how many degrees?




What is the least number of edges that a prism may have?




How many total faces are in a pyramid with a decagon as its base?



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