In the adjoining figure, ABCD is a rectangle with AB = 10 cm and BC = 5 cm. If angle BEC = 30 degree, then find the measure of AE. (take root 3 = 1.73)
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Answered by
0
Answer:
ae measure is 15 lets give points please
Answered by
0
Step-by-step explanation:
Given: CE=CB=7cm
∴ CD=CE+ED=(7+4)cm=11cm
In Δ CLB, we have
sin60
∘
=
BC
BL
⇒
2
3
=
7
BL
⇒BL=
2
7
3
cm
∴ Area of trapezium =
2
1
(AB+CD)×BL=
2
1
(7+11)×
2
7
3
cm
2
=
2
63
3
cm
2
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