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Step-by-step explanation:

To find the area of a rectangle you use the formula: A= lw

** l is length and w is width

For figure A and C, they're rectangles, so you multiply the length and the width  to get the area:

Fig. A )A=lw            

= (4)(4)          

= 16                

For figures B and D, you use the formula: A= bh/2

**B is the base and h is the height

Fig. D) A=bh/2

= 6(4)/2  

= 12

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step-by-step explanation:

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