Checking understanding of angles from KS2

Maths

This unit gives pupils the opportunity to explore polygons and begin to generalise their understanding of interior/exterior angles in regular polygons. In the future unit, pupils will use the geometrical properties of a rhombus to perform various constructions

In this unit, pupils learnt how to calculate with angles at a point and angles on a straight line. In this unit, pupils extend their knowledge about angles in lines

Geometrical properties: polygons

The angles 119° and $$x$$° are supplementary angles. Find the size of angle $$x$$°.

The size of angle $$d$$ is measured accurately. Which of these values shows the size of angle $$d$$, in degrees?

The angles 167° and $$y$$° are conjugate angles. Angle $$y$$° is {{ }}°.

Angles $$e$$° and 125° are supplementary angles.

Angles $$e$$° and 125° are conjugate angles.

Which of these statements about this diagram are accurate?

QR is a line segment. Find the value of $$f+g+h+j$$.

Complete the sentence: 77° is   ____________   angle.

Which of these calculations gives a different answer to the others?

A 2D shape with at least one straight side.

All 2D shapes that are not circles are polygons.

A 2D shape made up from only straight line segments. 

Triangles and squares are the only polygons.

Which of these is the most accurate description of a polygon?

Which of these properties of a polygon always remain invariant when the polygon is reflected? 

Which of these properties of a polygon always remain invariant when the polygon is positively enlarged? 

This lesson will soon be taken down.

Checking understanding of angles from KS2

Lesson outcome