Atriangle was dialated by a scale factor of 4. if tan a = 4/3 and line fd measures 12 units, how long is line ef?

EF = 16 units

Step-by-step explanation:

We are given tan a = 4/3 and FD = 12 units.

We can find arc sin of tan a by using a calculator. We get approximately 53 degrees.

Now we can use tangent identity to find side ED.

Tangent = opposite/adjacent

Tan 53 = EF/12

EF = 16 units.

b is 38 degrees.

a is 52 degrees.

this is because if b is 38 and a is 14 degrees more than b than 38+14=52 and 52+38=90 degrees. hope this .