a photograph 10 cm by 8 cm is mounted on a piece of cardboard which is 16 cm by 12 cm. find the area of the margin round the photograph
Answers
Answered by
7
Answer:
16 x 12 - 10 x 8
192 - 80
112
Answered by
7
Step-by-step explanation:
Rectangle Area Formulae:
A = L×W
Photograph Area:
A = 10 × 8
A = 80cm2
Carboard Area:
A = 16×12
A = 192cm2
The Margin Round The Photograph
Cardboard Area - Photograph Area
192cm2 - 80cm2
=112cm2
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