2-11. 2-12. 2-13. 2-14. 2-15. What is the degree of angularity for the angle opposing the hypotenuse of a right triangle? 1. 90° 2. 60° 3. 45° 4. 30° What is the degree of angularity at the vertex for an isosceles triangle with base angles of 45 degrees? 1. 90° 2. 60° 3. 45° 4. 30° Which of the following shapes is a quadrilateral with equal opposing sides and equal opposing angles? 1.    Trapezoid 2. Square 3. Rectangle 4. Rhomboid Which of the following geometric shapes is a quadrilateral but not a parallelogram? 1.    Rhomboid 2. Trapezium 3. Square 4. Rectangle What is the term for a rectilinear geometric shape that contains no equal sides or angles and no parallel sides? 1.    Trapezium 2. Trapezoid 3. Ellipse 4. Circle 2-16. Which of the following geometric shapes is also a regular polygon? 1. Nonagon 2. Dodecagon 3. Equilateral triangle 4. Rectangle 2-17. How many sides does a heptagon contain? 1. 7 2. 6 3. 5 4. 4 2-18. What is the name of a lo-sided polygon? 1. Pentagon 2. Dodecagon 3. Decagon 4. Nonagon 2-19. What is the length of the radii in a circle with a diameter of 60mm? 1. 10mm 2. 60mm 3. 30mm 4. 45mm 2-20. The portion of a circle between two given radii at 36 degrees angularity, including the bound portion of the circumference, is known by what term? 1. Sectors 2. Secants 3. Chords 4. Arcs 2-21. What term refers to multiple circles that do not share a common center? 1. Inscribed 2. Concentric 3. Circumscribed 4. Eccentric 8