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sarika 's project = )

Page history last edited by PBworks 16 years, 10 months ago

 

 

Geometry

 

Pythagoras

 

fisrt i will tell you about Pythagoras  

 

 

 

Pythagoras is finding the missing side of a trinagle. It a mix of algebra and geometry

 

 

A = altidude    )

B = bace         )        ------                =  makes the right a angle

C = hypotenus /  longest side )

 

 

 

 

 

Finding C

 

 

 the formual for finding C is

 

A2 + B2 = C2

 

 so find the missing angle wiith this formula

 

 

 A2+B2 =C2

(7x7) + (5x5)

  49   +   25 = c2

  74  = C2

 

 

 

 

8 = C

 

 

finding B

 

formula is B2 = C2 - A2 

 

 

 

B2 = c2 - a2 

 

(8x8) - (7x7)

 

B2 =  64   -   49

 

b2 = 15

 

B2 =

B = 3cm

 

 

 forumla of  shapes

 

 

square

 

L+L +W +W = Perimeter

 

 

L x W = Aera

 

 

 

Rectangle

 

L + L + W + W = perimeter

 

L x W = Aera

 

 

 

Trinangle

 

 add all the sides together

 

A+B+C = P

 

BxH/2 = A

 

 

circle

 

Circumfrence = Perimeter

 

C = pi D

 

pi R sqaure = Aera

 

 

 

 

Surface aera

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Jeopardy Game s.s

 

 

 

 

 

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