A rectangular picture frame has outer dimensions = 28 cm × 32 cm. The dimensions of the picture are 20 cm × 24 cm. Find the area of the section of the frame that is empty, if the width of each section is the same.
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We are given width of each section is same.
∴ Width of each section will be =82=4cm
Now, ar(EEGH)=24∗20=480cm2
ar(AEHD)=ar(BFGC)=12(Sum of parallel sides)(width) =12(32+24)∗4=112cm2
ar(CGHD)=ar(AEFB)=12(20+28)∗4=96cm2
ar(ABCD)=32∗28=896cm2
Step-by-step explanation:
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