## Welcome to H3 Maths

Blog Support for Growing Mathematicians

## Posts tagged with squares

### Shapes

March10

Have you ever wondered why we put a round pizza into a square box and cut it into triangles? Don’t worry – most of us never think about it. But here is the exploration – check out what other shapes pizzas come in and find the most economic design.

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### Get a better maths kid by midnight

December3

Yes, there are some cool tips to grow better math students. Here is the first one – learn these squares and cubes, especially the highlighted ones. For the cubes, it actually is quite rhythmical when you say them aloud – “four 4’s are 16, 16 fours are 64” “five 5’s are 25, 25 fives are […]

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#### Post Support

NCEA Level 2 Algebra Problem. Using the information given, the shaded area = 9, that is:
y(y-8) = 9 –> y.y – 8y – 9 =0
–> (y-9)(y+1) = 0, therefore y = 9 (can’t have a distance of – 1 for the other solution for y)
Using the top and bottom of the rectangle,
x = (y-8)(y+2) = (9-8)(9+2) = 11
but, the left side = (x-4) = 11-4 = 7, but rhs = y+? = 9+?, which is greater than the value of the opp. side??
[I think that the left had side was a mistake and should have read (x+4)?]