1.
Classify the triangle by its angles and its sides.
A.
acute and scalene
B.
acute and isosceles
C.
right and isosceles
D.
right and scalene
Hint
2.
Classify the triangle by its angles and its sides.
A.
obtuse and equilateral
B.
acute and isosceles
C.
right and isosceles
D.
right and scalene
Hint
3.
Find the value of
x
in
if
°
and
°, and
is a right angle.
A.
5
B.
15
C.
20
D.
10
Hint
4.
Choose the false statement.
A.
A right triangle has two acute angles.
B.
An equilateral triangle has three acute angles.
C.
A triangle can have three acute angles.
D.
An obtuse triangle has two obtuse angles.
Hint
5.
Find the value of
x
in
RST
if
m
R
= 3
x
°,
m
S
= 3
x
°, and
m
T
= 90°.
A.
x
= 10
B.
x
= 20
C.
x
= 45
D.
x
= 15
Hint