Resources tagged with Angle properties of shapes similar to Tessellating Hexagons:
Other tags that relate to Tessellating Hexagons
Visualising. Interactivities. Angle properties of shapes. Tessellations. Mathematical reasoning & proof. Cubes. Working systematically. Angles at a point/on a line. Generalising. Creating expressions/formulae.There are 32 results
Broad Topics > 2D Geometry, Shape and Space > Angle properties of shapes
Convex Polygons
Stage: 3 Challenge Level: 
Show that among the interior angles of a convex polygon there cannot be more than three acute angles.
Can You Explain Why?
Stage: 3 Challenge Level:
Can you explain why it is impossible to construct this triangle?
Getting an Angle
Stage: 3 Challenge Level:
How can you make an angle of 60 degrees by folding a sheet of paper twice?
Semi-regular Tessellations
Stage: 3 Challenge Level:
Semi-regular tessellations combine two or more different regular polygons to fill the plane. Can you find all the semi-regular tessellations?
Triangles in Circles
Stage: 3 Challenge Level:
Can you find triangles on a 9-point circle? Can you work out their angles?
Cyclic Quadrilaterals
Stage: 3 Challenge Level:
Draw some quadrilaterals on a 9-point circle and work out the angles. Is there a theorem?
Subtended Angles
Stage: 3 Challenge Level:
What is the relationship between the angle at the centre and the angles at the circumference, for angles which stand on the same arc? Can you prove it?
Cyclic Quads
Stage: 4 Challenge Level:
Points D, E and F are on the the sides of triangle ABC. Circumcircles are drawn to the triangles ADE, BEF and CFD respectively. What do you notice about these three circumcircles?
Terminology
Stage: 4 Challenge Level:
Given an equilateral triangle inside an isosceles triangle, can you find a relationship between the angles?
Which Solids Can We Make?
Stage: 3 Challenge Level:
Interior angles can help us to work out which polygons will tessellate. Can we use similar ideas to predict which polygons combine to create semi-regular solids?
Star Polygons
Stage: 3 Challenge Level:
Draw some stars and measure the angles at their points. Can you find and prove a result about their sum?
Floored
Stage: 3 Challenge Level:
A floor is covered by a tessellation of equilateral triangles, each having three equal arcs inside it. What proportion of the area of the tessellation is shaded?
No Right Angle Here
Stage: 4 Challenge Level:
Prove that the internal angle bisectors of a triangle will never be perpendicular to each other.
Polygon Pictures
Stage: 3 Challenge Level:
Can you work out how these polygon pictures were drawn, and use that to figure out their angles?
A Sameness Surely
Stage: 4 Challenge Level:
Triangle ABC has a right angle at C. ACRS and CBPQ are squares. ST and PU are perpendicular to AB produced. Show that ST + PU = AB
Logo Challenge 3 - Star Square
Stage: 2, 3 and 4 Challenge Level:
Creating designs with squares - using the REPEAT command in LOGO. This requires some careful thought on angles
LOGO Challenge 4 - Squares to Procedures
Stage: 3 and 4 Challenge Level:
This LOGO Challenge emphasises the idea of breaking down a problem into smaller manageable parts. Working on squares and angles.
Pegboard Quads
Stage: 4 Challenge Level:
Make five different quadrilaterals on a nine-point pegboard, without using the centre peg. Work out the angles in each quadrilateral you make. Now, what other relationships you can see?
Pent
Stage: 4 and 5 Challenge Level:
The diagram shows a regular pentagon with sides of unit length. Find all the angles in the diagram. Prove that the quadrilateral shown in red is a rhombus.
Bisecting Angles in a Triangle
Stage: 3 and 4 Challenge Level:
Measure the two angles. What do you notice?
Pie Cuts
Stage: 3 Challenge Level:
Investigate the different ways of cutting a perfectly circular pie into equal pieces using exactly 3 cuts. The cuts have to be along chords of the circle (which might be diameters).
Dodecawhat
Stage: 4 Challenge Level:
Follow instructions to fold sheets of A4 paper into pentagons and assemble them to form a dodecahedron. Calculate the error in the angle of the not perfectly regular pentagons you make.
Triangles and Petals
Stage: 4 Challenge Level:
An equilateral triangle rotates around regular polygons and produces an outline like a flower. What are the perimeters of the different flowers?
Pentakite
Stage: 4 and 5 Challenge Level:
ABCDE is a regular pentagon of side length one unit. BC produced meets ED produced at F. Show that triangle CDF is congruent to triangle EDB. Find the length of BE.
Angle A
Stage: 3 Challenge Level:
The three corners of a triangle are sitting on a circle. The angles are called Angle A, Angle B and Angle C. The dot in the middle of the circle shows the centre. The counter is measuring the size. . . .
Angles in Three Squares
Stage: 3 and 4 Challenge Level:
Drawing the right diagram can help you to prove a result about the angles in a line of squares.
Arclets Explained
Stage: 3 and 4
This article gives an wonderful insight into students working on the Arclets problem that first appeared in the Sept 2002 edition of the NRICH website.
First Forward Into Logo 7: Angles of Polygons
Stage: 3, 4 and 5 Challenge Level:
More Logo for beginners. Learn to calculate exterior angles and draw regular polygons using procedures and variables.
Tricircle
Stage: 4 Challenge Level:
The centre of the larger circle is at the midpoint of one side of an equilateral triangle and the circle touches the other two sides of the triangle. A smaller circle touches the larger circle and. . . .
First Forward Into Logo 9: Stars
Stage: 3, 4 and 5 Challenge Level:
Turn through bigger angles and draw stars with Logo.
At a Glance
Stage: 4 Challenge Level:
The area of a regular pentagon looks about twice as a big as the pentangle star drawn within it. Is it?
NRICH is part of the family of activities in the Millennium Mathematics Project.