Angle Types
Classify the following angle
Obtuse Angle
Draw the Corresponding Angle for x
Teacher to check
Interior angles in a triangle add up to...
180 degrees
360 degrees
Complementary angles add up to...
90 degrees
An angle which is greater than 180 degrees but less than 360 degrees
Reflex Angle
What is the value of a?
37 degrees
A triangle with two equal sides and two equal base angles is a/an...
Isosceles Triangles
What is a quadrilateral that has two pair of parallel sides and has 4 right angles?
Rectangle/Square
Three equal side
Three equal angles
What type of triangle am I?
Equilateral
Which angles are vertically opposite in this diagram?
d and f
u and x
v and w
s and z
t and y
Calculate the size of the missing angle
30 degrees
What quadrilateral is this?
Trapezium
What are the values of the pronumerals?
a = 116
b and c = 104
Which of the following are complementary angles?
120 and 60
35 and 55
35 and 55
Draw a set of parallel lines with a transversal and mark Co-Interior angles on it.
Teacher to check
Calculate the value of the pronumeral
e = 151 degrees
What are two specific properties you can say about a Kite?
Two pairs of adjacent sides are equal
Opposite angles are equal
Draw and angle of 200 degrees.
Teacher to check answer.
What is the value of angle RPQ?
23 degrees
What angle is an angle supplementary to w?
Answer can't be x or y
u or t
Is it possible to have a triangle with more than one obtuse angle? Explain.
No. Interior angles add up to 180 degrees and obtuse angles are more than 90 degrees.
One angle in a parallelogram is 45 degrees. What are the values of the other angles in the quadrilateral?
Draw one if it helps you solve it
Other angles:
45 degrees
135 degrees
135 degrees
A kite has a bottom angle of 50 degrees and a top angle of 110 degrees. What is the value of the other angles?
360-110-50 = 200
200/2 = 100 degrees