# 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.

D Devendra Khairwa

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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