Free Printable Angles and Triangles

Worksheets

Angles and Triangles

Total questions: 20

Worksheet time: 13mins

Name

Class

Date

Name the type of angle (40^o).

Obtuse Angle

Tri Angle

Acute Angle

Reflex Angle

Name the type of angle (220^o)

Reflex Angle

Obtuse Angle

Acute Angle

Right Angle

Name the type of angle (180^o).

Acute Angle

Straight Angle

Right Angle

Line Angle

Name the type of angle (120^o).

Acute Angle

Right Angle

Reflex Angle

Obtuse Angle

Name the type of angle (90^o).

Acute Angle

Right Angle

Straight Angle

Reflex Angle

What is the angle between the two red lines?

142^o

40^o

42^o

142^o

Angles that add up to 90^o are called __________ angles.

Supplementary

Complementary

Acute

Reflex

Angles that add up to 180^o are called __________ angles.

Supplementary

Obtuse

Reflex

Complementary

Sum of all the angles in any triangle is equal to ____.

90^o

360^o

180^o

100^o

10.

Find the value of angle a.

50^o

70^o

120^o

60^o

11.

What is the missing angle ACB (?)

40^o

90^o

50^o

30^o

12.

Triangle ABC is an isosceles triangle, find the value of x.

50^o

100^o

70^o

40^o

13.

Triangle PQR is an isosceles triangle, find the value of x

90^o

45^o

135^o

67.5^o

14.

Triangle ABC is an equilateral triangle, find the value of angle m

30^o

60^o

40^o

120^o

15.

Find the value of x.

x = (a) degrees.

16.

Find the missing angle.

a = (a) ^o.

17.

Find the missing angle.

d = (a) ^o.

18.

Find the missing angle.

e = (a) ^o.

19.

Find the missing angle.

g = (a) ^o.

20.

Find the missing angle.

i = (a) ^o.

100 %

Angles and Triangles

Total questions: 20

Worksheet time: 13mins

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