Answer:
Actual length of w is 0.075 units.
Step-by-step explanation:
Given the actual length of side t is 0.045 cm.
we have to use the scale drawing to find the actual side length of w.
As given the actual length of t is 0.045 cm.
Hence, we can find the scale factor using the lengths of t i.e actual length and after scale drawing by dividing.
Scale factor is [tex]\frac{0.9}{0.045}=20[/tex]
Hence, we get the scale factor.
Now, [tex]scale factor=\frac{\text{length in figure}}{\text{actual length}}[/tex]
⇒ [tex]20=\frac{1.5}{\text{actual length}}[/tex]
⇒ Actual length of w is [tex]\frac{1.5}{20}=0.075units[/tex]
Option B is correct.
Answer:
B. 0.075 cm
Step-by-step explanation:
We are given that the actual length of side t = 0.045 cm
The length in scale drawing of t = 0.9 cm
Since, the length of w in the scale drawing = 1.5 cm
Let the actual length of w = w cm
So, using proportions, we have,
[tex]\frac{0.045}{0.9}=\frac{w}{1.5}[/tex]
i.e. [tex]w=\frac{0.045\times 1.5}{0.9}[/tex]
i.e. [tex]w=\frac{0.0675}{0.9}[/tex]
i.e. w= 0.075 cm
Thus, the actual length of the side w is 0.075 cm.
