Quadrilaterals

Each quadrilaterals has:

• 4 vertices

• 4 angles

• 4 sides

• 4 diagonals

• 4 axes of symmetry

What are red line segments shown in the picture called?

• diagonals

• altitudes

• axes of symmetry

• sides

• bases

Fill in the blank.

If two line segments intersects each other at a right angle, they are (...).

• parallel

• perpendicular

• congruent

Which quadrilateral is an isosceles trapezium?

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Trapezium or trapezoid? ;)

• trapezium

• trapezoid

• I like both

• I don't like maths.

What is the measure of ∢ABC?

Whose figures diagonals are perpendicular to each other?

• square's

• rhombus'

• isosceles trapezium's

• right trapezium's

• deltoid's

Find the area of the figure above.

• $42cm^2$

• $26,7cm^2$

• $28cm^2$

• $47,6\ cm^2$