Compare and order acute, obtuse and reflex angles

Maths

Angles

A numberline starting at 0 and ending at 10 is divided into 10 equal parts.  Each equal part represents:

A numberline starting at 0 and ending at 100 is divided into 10 equal parts. Each equal part represents:

A numberline starting at 0 and ending at 1 is divided into 10 equal parts. Each equal part represents:

A container is filled with four colours of sand.  0.3 of the container is blue, 0.1 is black.  Which decimals could represent the yellow and white sand?

0.7 of a container is filled with water.  How much of the container can still be filled?

REVISION: Which of these angles is obtuse?

Is this statement always, sometimes or never true: "I can draw a triangle with 2 obtuse angles"

How many acute, obtuse and right angles are there in this shape?

Is this statement always, sometimes or never true: "A quadrilateral has 4 acute angles"

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