We know that:
and:
![8+(-3)[6+(-6a)]=8+(-3)*6+(-3)*(-6a)=8-18+18a](https://tex.z-dn.net/?f=8%2B%28-3%29%5B6%2B%28-6a%29%5D%3D8%2B%28-3%29%2A6%2B%28-3%29%2A%28-6a%29%3D8-18%2B18a)
if you have solve for
then:
and:
if you have solve for
How do I solve question 6a?
1 answer:
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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,
D =
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.
