Area and Perimeter · Web viewC = 2π r Area: Rectangle: A = l × w Square: A = s 2 Triangle: A =...
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Volume and Area Notes Area and Perimeter Perimeter: Rectangle: P = 2w + 2l Square: P = 4s Triangle: P = x + y + z Circle: C = 2πr Area: Rectangle: A = l × w Square: A = s 2 Triangle: A = bh Circle: A = πr 2 Find the perimeter and area for each of the figures shown below: Ex. 1) Ex. 2) P = 2(2.5) + 2(6) A = (2.5)(6) P = 4(3) A = (3)(3) 5+12 = 17 cm 15 cm 2 12 in 9 in 2 Ex. 3) Ex. 4) 1
Transcript of Area and Perimeter · Web viewC = 2π r Area: Rectangle: A = l × w Square: A = s 2 Triangle: A =...
Volume and Area NotesArea and Perimeter
Perimeter:
Rectangle:
P = 2w + 2l
Square:
P = 4s
Triangle:
P = x + y + z
Circle:
C = 2πr
Area:
Rectangle:
A = l × w
Square:
A = s2
Triangle:
A = bh
Circle:
A = πr2
Find the perimeter and area for each of the figures shown below:
Ex. 1) Ex. 2)
P = 2(2.5) + 2(6) A = (2.5)(6) P = 4(3) A = (3)(3) 5+12 = 17 cm 15 cm2 12 in 9 in2
Ex. 3) Ex. 4)
P = 9+15+12 A = (.5)(9)(12) C = (2)( )(3)π A = (3)π 2
36 mm 54 mm2 6 cm or 18.85 cm 9 cmπ π 2 or 28.27 cm2
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