11    Diagram of the adjacent picture frame has outer dimensions = 24 cm \times 28 cm and inner dimensions 16 cm \times 20 cm. Find the area of each section of  the frame, if the width of each section is same.

        

Answers (1)

Area of opposite sections will be same.

So area of horizontal sections,

                                                     =\frac{1}{2}\times4(16+24) = 2(40) = 80\ cm^2

And area of vertical sections,

                                                     = \frac{1}{2}\times8(20+28) = 4(48) = 96\ cm^2

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