Let’s revise some angles Angles What names of angles do you know? ACUTE RIGHT ANGLE OBTUSEREFLEX Less than 90 o Exactly 90 o Between 90 o and 180 o Between.

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Presentation transcript:

Let’s revise some angles

Angles What names of angles do you know? ACUTE RIGHT ANGLE OBTUSEREFLEX Less than 90 o Exactly 90 o Between 90 o and 180 o Between 180 o and 360 o

? reflexright acute obtuse

? reflexright acute obtuse

? reflexright acute obtuse

? reflexright acute obtuse

? reflexright acute obtuse

? reflexright acute obtuse

? reflexright acute obtuse

? reflexright acute obtuse

? reflexright acute obtuse

? reflexright acute obtuse

? reflexright acute obtuse

? reflexright acute obtuse

? reflexright acute obtuse

? reflexright acute obtuse

? reflexright acute obtuse

Triangles W.A.L.T. Understand that triangles can be classified according to their properties

Triangles W.I.L.F. I will be able to name at least four different triangles and their properties.

Where can we find triangles? Have a look around the classroom. How many triangles can you see? What type of triangle do you think they are?

Where else can we find triangles? Look at the following pictures. See if you can see any triangles. Which types of triangles can you see?

1.Equilateral Triangle (3 sides of equal length) (3 equal angles) 60  A B C

2. Isosceles Triangle (2 sides of equal length) (2 equal angles) 40  70  A B C

3. Scalene Triangle (3 sides of different length) (3 different angles) 100  35  45  A B C

4. Right angled triangle (1 right angle) A B C 50  40 

5. Obtuse triangle (1 angle greater than 90°) 110  35  25  A B C

6. Acute triangle (all angles less than 90°) 85  65  30  A B C