Geometry Top Doc Shape Perimeter Formula Area Formula Explanation Square S1+S2+S3+S4 or 4S l * w All sides are equal. Rectangle 2l + 2w or 2(l +w) or l + l + w + w 2 pairs of equal opposite parallel sides. Triangle S1+S2+S3 A = 1/2bh b=base h=height The base & height are perpendicular. 2 triangles placed together form a parallelogram. Parallelogram b*h The base & height are perpendicular. Circle Circumference 2πr or πd r=radius d=diameter πr2 π=3.14 or 22/7 Geometry Top Doc

Triangular Prism SA =2(1/2bh) + (a+b+c)h V=Bh B=1/2bh So V=(1/2bh)h Shape Surface Area Volume=Bh B=area of the base Triangular Prism 2(area of base) + (perimeter of base)h SA = 2B + Ph SA =2(1/2bh) + (a+b+c)h A triangular prism always has 2 triangular bases/faces and 3 rectangular faces. V=Bh B=1/2bh So V=(1/2bh)h 1st h is the height of the triangle, 2nd h is the height of the prism Rectangular Prism 2(lw) + (a+b+c+d)h B=lw V=lwh Cylinder 2(area of base) + (area of the rounded rectangle) SA = 2πr2 + 2πrh B=πr2 V=πr2h Square Pyramid area of base + 4(area of other triangular faces) SA= lw + 4(1/2bh) V=1/3Bh B=s2 V=1/3s2h Cone SA=πr2+πrl l=slant height V=1/3πr2h Sphere SA = 4πr2 V = 4/3πr3