Monday, February 13, 2012

Amiel's Pythagoras Post 4, 5, 10

4.what are the areas of the square?

e=30mm
e= 30²
e=30x30
e=900mm
²

f=40mm
f=40²
f=40x40
f=1600mm²

g=50mm
g=50²
g=50x50
g=2500mm²

5. A right triangle has side length of 40mm, 75mm, and 85mm.
a) Sketch the right triangle and draw squares around each side of the triangle.

b) What are the areas of the three squares?

A=40mm B=75mm C=80mm
A=40² B=75² C=80²
A=40x40 B=75x75 C=80x80
A=1600mm B=5625 C=7225


c) Write an addition statement using the areas of these three squares.
A
²+B²=C²

1600+5625=7225

10. A triangle has the side lengths of 120mm, 160mm, and
200mm. Is the triangle a right triangle? Explaing your reasoning.







a+b=c
120+160= 280
280≠200

It is not the a right triangle because the leg of the triangle did not equal the hypotenuse.



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