16. AMNO with m/M = 91°, mZN = 30°,
and m20 = 59°.
17. ARST with m/R = 80°, m/S= 45°, and
m/T= 55°.
18. AGHI with m/G= 20°, m/H = 70°, and
m/I = 90°.
Determine whether the following statements are true
or false. Try drawing each of the following triangles to
help you decide.
19. The vertex angle of an isosceles triangle
will always be the smallest angle.
20. An equilateral triangle is also an
equiangular triangle.
21. An isosceles triangle may also be a right
triangle.
22. It is possible for a scalene triangle to be
equiangular.
23. It is possible for a right triangle to be
equilateral.
24. It is possible for an obtuse triangle to
be isosceles.
25. An equilateral triangle is always an
acute triangle.
26. A triangle can have two obtuse angles
27. A triangle cannot have more than one
right angle.
Give the answer to each question based on the real
ings from the chapter.
28. The noncongruent side of an isosceles triangle
is called the
29. List the types of triangles with at least two
acute angles.
30. A small curve made on an angle of a triangle
signifies