Volume Post

First Cylinder
V= 3.14 x r x r x h
V = 3.14 x 5 x 5 x 30
V= 2355 cm3

Second Cylinder
H = v/r/r/3.14
H = 30cm

H = v/aob
H = 150cm3/48cm2
H = 3cm

AJ's Scribe Post

Questions 3,9,14.

3.

A)420m

120m+300m = 420m

B)323m

a²+b²=c²

120m²+300m²=c²

(120x120)+(300x300)=c²

104400m²= c²

√104400m²= c²

√323²= √c²

C) Maria walked further by 97m

9.

A)4.2cm

B)34cm

14.

15.6mm

Aj's Pythagoras scribe

4.

30x30 = 900mm2

40x40=1600mm2

50x50=2500mm2

9.

a)

2x2 = 4cm2

3x3 = 9cm2

4x4 = 16cm2

b) It isn't a right triangle because the legs do not equal the hypotenuse.

12.

a)52cm2

b)676mm2

c)65cm2

d)24cm2

17.

a)1225cm2

b)169mm2

Links :

http://www.historyforkids.org/learn/greeks/science/math/pythagoras.htm

http://www.cut-the-knot.org/pythagoras/

Video:

AJ's Math Profile

Hello! My name is AJ Pangan. I am a grade 8 math student.If someone asked me if I liked math I would say No.I'm not really good at it because I find it frustrating and confusing at times. The best thing I ever did in a math class was in Grade 6 when my teacher would give us random math questions and would give prizes to the winning team.I like this event because it would challenge us and we got a reward afterwards.

Last year in grade 7,The best unit I studied was Coordinate grids.I did well in the unit because it was fun and easy.The unit that made me struggle was Integers. It was difficult for me because I got confused when it came to the adding and subtracting.I will ask questions and listen better so I will not struggle as much as I did last year.

This year in grade 8 the things I will do to become a successful math student is to listen more,ask questions if I don't understand and study.I will not slack off like I did last year. The things I want to learn about this year are anything.

Due to me being lazy last year, I didn't do a blog...