Respuesta :
Answer:
The difference in the length of AB and AD is 1.17 units
Step-by-step explanation:
CHECK THE ATTACHMENT FOR FIGURE FOR THE QUESTION
If we study the figure in the attachment , In the ΔABC and ΔADC,
We were given;
x = 45°
y = 63°
AC = 4 units
We will be making use of Sine rule in ΔABC to get our AB side, and we know that in trigonometry, sine rule is an equation that relate the lengths of the sides of a triangle to the sines of its angles.
Sin(B)= Opposite/Hypotenuse
Sin(X) = AC/AB
Sin(45) = 4/AB
Then, Sin(45) * AB = 4
But Sin(45)=1/√2
Then if we substitute the value we have
5.657units
Hence, AB= 5.657units
We can also make use of by sine rule in ΔADC to get our AD side
Sin(y)° = AC/AD
Sin(63) = 4/AD
Sin(63)× AD= 4
AS= 4.489 units
Hence AD= 4.489 units
To calculate the difference in the length of AB and AD, we will need to substract side AD from AB; which is
AB - AD = 5.657 - 4.489
= 1.168
= 1.17 units ( if we approximate)
Hence, the difference in the length of AB and AD would be 1.17 units

Given question is incomplete without the figure; find the figure attached.
Difference in the lengths of AB and AD is 1.17 units.
Given in the question,
- m∠x = 45° and m∠y = 63°
- AC = 4 units
Apply sine rule in ΔABC,
sin(x°) = [tex]\frac{AC}{AB}[/tex]
sin(45°) = [tex]\frac{4}{AB}[/tex]
AB = 4√2
AB ≈ 5.657
Similarly, apply sine rule in ΔADC,
sin(y°) = [tex]\frac{AC}{DC}[/tex]
sin(63°) = [tex]\frac{4}{AD}[/tex]
AD = 4.489
Now difference in lengths of AB and AD = 5.657 - 4.489
= 1.168
≈ 1.17
Therefore, difference in the lengths of AB and AD will be 1.17 units.
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