Resources tagged with Scale factors similar to Equilateral Areas:
Other tags that relate to Equilateral Areas
Pythagoras' theorem. Generalising. Mathematical reasoning & proof. Area. Calculus generally. Mathematical modelling. Circles. Making and proving conjectures. Manipulating algebraic expressions/formulae. Limits.There are 10 results
Broad Topics > Transformations and their Properties > Scale factors
Growing Rectangles
Stage: 3 Challenge Level: 
What happens to the area and volume of 2D and 3D shapes when you enlarge them?
Matter of Scale
Stage: 4 Challenge Level:
Prove Pythagoras' Theorem using enlargements and scale factors.
Who Is the Fairest of Them All ?
Stage: 3 Challenge Level:
Explore the effect of combining enlargements.
Fit for Photocopying
Stage: 4 Challenge Level:
Photocopiers can reduce from A3 to A4 without distorting the image. Explore the relationships between different paper sizes that make this possible.
Fill Me up Too
Stage: 4 Challenge Level:
In Fill Me Up we invited you to sketch graphs as vessels are filled with water. Can you work out the equations of the graphs?
Where Am I?
Stage: 3 and 4 Challenge Level:
From the information you are asked to work out where the picture was taken. Is there too much information? How accurate can your answer be?
Conical Bottle
Stage: 4 Challenge Level:
A right circular cone is filled with liquid to a depth of half its vertical height. The cone is inverted. How high up the vertical height of the cone will the liquid rise?
The Rescaled Map
Stage: 4 Challenge Level:
We use statistics to give ourselves an informed view on a subject of interest. This problem explores how to scale countries on a map to represent characteristics other than land area.
Arrh!
Stage: 4 Challenge Level:
Triangle ABC is equilateral. D, the midpoint of BC, is the centre of the semi-circle whose radius is R which touches AB and AC, as well as a smaller circle with radius r which also touches AB and AC. . . .
NRICH is part of the family of activities in the Millennium Mathematics Project.