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I am Lyosha [343]
3 years ago
15

Angela uses a scanner to make a reduced-size (smaller) copy of a rectangular photo that is 8 inches long and 4 inches wide. The

new length is 4 inches. What is its new width?
Mathematics
1 answer:
svet-max [94.6K]3 years ago
6 0

Answer:

The new width = 2 inches

Step-by-step explanation:

Original dimensions of the rectangular photo:

Length : width = 8 inches : 4 inches

Reduced dimensions of the rectangular photo:

Let

x = the new width

Length : width = 4 inches : x inches

Equate both dimensions to get the value of x

Length : width

8 inches : 4 inches = 4 inches : x inches

8 / 4 = 4 / x

Cross product

8 * x = 4 * 4

8x = 16

x = 16/8

x = 2 inches

The new width = 2 inches

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a^2+b^2=c^2

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First, we must find the greatest side length.

We know, using the distance formula.

GB= \sqrt{(-35-20)^2 +(20-10)^2} =\sqrt{3125}
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From this, we know that:
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Now we substitute the values for the two shorter lengths and the greater length into the pythagorean theorem:
a^2+b^2=2500+625=3125
c^2=3125
\therefore LHS=RHS
Therefore, this triangle is a right angled triangle

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