Question

in a greeting card measuring 15 CM by 10 cm if photograph is pasted leaving MRG in of 1 cm along its border find the area of photograph​

Answer 1

Answer:

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Answer 2

Given data : If the photo is pasted into a greeting card measuring 15 cm by 10 cm, with its border leaving a margin in 1 cm.

To find : Find the area of the photograph.

Solution : Here, a/c to given data;

➜ Length of card = 15 cm

➜ Breadth of card = 10 cm

Let, the shape of the greeting card is rectangular.

Now, by formula of area of rectangle;

➜ Area of card = Length * Breadth

➜ Area of card = 15 * 10

➜ Area of card = 150 cm²

Now, after leaving a margin in 1 cm. {a/c to given data}

➜ New length = Length of card + 2 * {Length of margin}

➜ New length = 15 + 2 * 1

➜ New length = 15 + 2

➜ New length = 17 cm similarly,

➜ New breadth = Breadth of card + 2 * {Breadth of margin}

➜ New breadth = 10 + 2 * 1

➜ New breadth = 10 + 2

➜ New breadth = 12 cm

Now,

➜ New, area (Card with margin) = New length * New breadth

➜ New, area (Card with margin) = 17 * 12

➜ New, area (Card with margin) = 204 cm²

Now,

➜ Area of photograph = New, area - Area of card

➜ Area of photograph = 204 - 150

➜ Area of photograph = 54 cm²

Answer : Hence, area of the photograph is 54 cm².