Name:
Triangles
X
P
D
F
E
Z
Y
An acute angle is
less than 90˚
A right angle is
exactly 90˚
An obtuse angle is
greater than 90˚
X
P
D
E
F
An acute triangle has
3 acute angles.
R
Q
Z
Y
A right triangle has 1 right angle
and 2 acute angles.
R
Q
An obtuse triangle has 1 obtuse angle
and 2 acute angles.
Identify each type of triangle as acute, right or obtuse.
a.
b.
c.
d.
e.
f.
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ANSWER KEY
Triangles
X
P
D
F
E
Z
Y
An acute angle is
less than 90˚
A right angle is
exactly 90˚
An obtuse angle is
greater than 90˚
X
P
D
F
E
An acute triangle has
3 acute angles.
R
Q
Z
Y
A right triangle has 1 right angle
and 2 acute angles.
R
Q
An obtuse triangle has 1 obtuse angle
and 2 acute angles.
Identify each type of triangle as acute, right or obtuse.
a.
b.
obtuse
d.
c.
acute
e.
acute
right
f.
obtuse
acute
Super Teacher Worksheets - www.superteacherworksheets.com
Halback