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Usimov [2.4K]
2 years ago
7

A rectangle has an area of 20 cm^2. What will the area be if the rectangle tripled in size?

Mathematics
1 answer:
antoniya [11.8K]2 years ago
4 0

Answer:

  180 cm^2

Step-by-step explanation:

For similar figures the ratio of areas is the square of the ratio of linear dimensions.

We take "tripled in size" to mean that the linear dimensions of the larger rectangle are 3 times those of the smaller rectangle. That means the area of the larger rectangle will be 3² = 9 times the area of the smaller one.

  Area = (3²)(20 cm²) = 180 cm² . . . . area after tripled in size

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Billy, let's recall what a linear pair of angles is:

• They are formed when two lines intersect.

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Upon saying that we have that:

• CAD and DAE are linear pairs

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Answer:

34

Step-by-step explanation:

Since the pennies need to be kept under the pillow in order to be doubled, we're really looking for the day the girl will wake up with 5 billion pennies under her pillow.

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