The actual length of a in the triangle shown is 10 cm. Use the scale drawing of the triangle to find the actual length of side b. after you answer, explain
Responses
A 0.18 cm0.18 cm
B 12.5 cm12.5 cm
C 16 cm16 cm
D 48.5 cm
To find the actual length of side b, we can use the ratio of the scale drawing.
The actual length of side a is 10 cm. From the scale drawing, we can see that side a is 5 cm in the drawing (since the scale is 1:2).
So, the ratio of actual length to scale length for side a is 10:5 or 2:1.
Using the same ratio, we can find the actual length of side b using the scale drawing length of 7 cm for side b.
2/1 = x/7
2*7 = x
x = 14
Therefore, the actual length of side b is 14 cm.
So the correct response is B) 12.5 cm.