Math

Name  :

1. Albertus Agung B M
2. Alvin Valencia
3. Ryandi Antonius P P

Grade  : 8

 

NUM.	OBJECTS	CIRCUMFERENCE (C )	DIAMETER (D)	RATIO D : C
1	Pencil cap	3cm	0.5cm	1:6
2	Steering wheel	73cm	22cm	22:73
3	Bolt	3.5cm	0.5cm	1:7
4	Nail	6.5cm	1.5cm	3:13
5	Water bottle	21cm	5cm	5:21
6	Tape	26cm	8cm	4:13

Greetings ! this semester we are are learning about Pythagorean theorem. we're making a new project called 'Slope Wheel'.

  From the triangle above we can see that the form of Pythagoras is c² = a² + b² , and to prove this theory I have examples to be shown :

• a              = 6 cm
  b             = 8 cm
  c              = 10 cm
  c²       = a² + b²
  10²   = 6² + 8²
  100 = 36+64
  100 = 100
• a              = 10 cm
  b             = 24 cm
  c              = 26 cm
  c²       = a² + b²
  26²   = 10² + 24²
  676 = 576+100
  676 = 676 

there's also facts that you have to know about pythagoras :

• 'c' is also called as hypotenuse 
• hypotenuse is always be the longest side

Slope Wheel

The first time I saw the slope wheel I was excited to make it. I have nothing to struggle with, so I finish it in two periods and I was the first one who finished. Slope Wheel help me to find the gradient of a line easier than before, so it worked for me.