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area fomula

cm2 m2 km2

What is the area fomula of a rectangle? A=LxW
what is the area fomula of a triangle? A=BxH:2
What is the area fomula of a parallelogram? A=BxH
what is the area fomula of a trapezoid? A=[A+B]xH:2
What is the area of a triangle that has a base that is 5cm and a hieght of 6 what is the area? A=BxH:2 =6x5:2 =15cm2
[parallelogram] B=8 H=2 Whats the area? A=BxH =8x2 =16cm2
[rectangle] L=7 W=8 Whats the area? A=LxW =7x8 =56cm2
[trapezoid] A=4 B=6 H=8 whats the area? A=[A+B]xH:2 =[4+6]x8:2 =40cm2
Created by: aka