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A rectangle with width 1.6 centimeters is enlarged to a rectangle with length 25 centimeters and width 8 centimeters. What is the area of the original rectangle? 8 cm² 20 cm² 25 cm² 40 cm²

Respuesta :

ChopinTheChicken

Hey there! I'm happy to help!

We see that the width goes from 1.6 to 8. How much bigger is 8 and than 1.6?

8/1.6=5

8 is 5 times bigger than 1.6, so this rectangle is 5 times larger than the original. Let's find the area of the big triangle.

25(8)=200

And then divide by 5. This will give us the smaller triangle.

200/5=40

Therefore, the answer is 40 cm².

Have a wonderful day! :D

CarolineJayamaha

Answer:

A. 8 cm²

Step-by-step explanation:

1. First, we need to find the scale factor by dividing the new width by the old width. 8/1.6 = 5.

2. Okay, now that we have the scale factor (5) we need to use it to find the old length. To find the old length we need to divide the new length by the scale factor. 25/5 = 5.

3. Now we know the width (1.6) and length (5) of our old model, so we just need to multiply to find the area. 1.6*5 = 8. 8 cm² is our area!

Hope this helps! Lol, I'm doing the Unit Test Review right now.

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