Respuesta :
Answer:
a). ∠D = 56°
b). AD = √13
Step-by-step explanation:
(a) From the figure attached, ABCD is a trapezoid with parallel sides AB and CD. We have to find the measure of ∠D from the given figure.
From triangle ADE,
[tex]tanD=\frac{AE}{DE}[/tex]
[tex]=\frac{3}{2}[/tex]
D = [tex]tan^{-1}(1.5)[/tex]
D = 56.31
D ≈ 56°
Therefore, measure of ∠D is 56°.
(b). Now by applying Pythagoras theorem in ΔADE,
AD² = AE² + DE²
= 3² + 2²
AD² = 9 + 4
AD = √13
Length of AD is √13 in.
a. The measure of angle ∠D = 56°.
b) The measure of AD = √13.
Calculation of the measure of the angle:
Since ABCD is a trapezoid with parallel sides AB and CD.
Now We have to determine the measure of ∠D from the given figure
[tex]tan D = AE \div DE\\\\ = 3\div 2\\\\D = tan^{-1}(1.5)\\\\[/tex]
= 56 degrees
b. Now the measure of AD should be
AD² = AE² + DE²
= 3² + 2²
AD² = 9 + 4
AD = √13
Hence, Length of AD is √13 in.
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