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A photo 18 cm by 12 cm is put in a frame 3 cm wide all around it. Find the area of the frame.

Class 7Area of Paths and BordersPerimeter and Area

A $432 cm^{2}$
B $180 cm^{2}$
C $216 cm^{2}$
D $90 cm^{2}$

Step-by-Step Solution

Outer size:

(18 + 6) \times (12 + 6) = 24 \times 18 = 432 cm^{2}

. Photo =

216 cm^{2}

. Frame

= 432 - 216 = 216 cm^{2}

.

Answer: C)

216 cm^{2}

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