## Tuesday, May 30, 2017

### Can this shape tile the plane? ( P6 tessellation )

Can copies of the purple region on the right be arranged to cover the plane without gaps or overlaps?
 Quiz of the Week

The image on the left shows how hexagons can cover the plane without gaps or overlaps.

Can copies of the purple region on the right be arranged to cover the plane without gaps or overlaps?

 Brilliant, 15 Butte Pl, San Francisco CA 94103 Unsubscribe from receiving Brilliant problems of the week 2-3 times per week (like this one).

## Pseudo-PSLE t-score Calculator

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2018 P5 SA2

## Sunday, May 21, 2017

### Fwd: Chang, which region is larger?

A right trapezoid is partitioned into 4 triangles by its diagonals, as shown below:
 Problems of the Week May 15 - May 21

A right trapezoid is partitioned into 4 triangles by its diagonals, as shown above.

Which colored region is larger?

 Brilliant, 15 Butte Pl, San Francisco CA 94103 Unsubscribe from receiving Brilliant problems of the week 2-3 times per week (like this one).

## Tuesday, May 16, 2017

### Fwd: The answer to this is not what you might expect!

If the solid cube has edge length 2, then what is the shortest distance that an ant can walk from corner A to corner B?
 Quiz of the Week
 If the solid cube has edge length 2, then what is the shortest distance that an ant can walk from corner A to corner B? Note: The ant can walk anywhere along the surface of the cube.

## Saturday, May 13, 2017

### The Quadratic Formula - INTUITIVE Derivation

https://youtu.be/EBbtoFMJvFc

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