Question

From the figure given below Calculate the length of CD

Answer 1

given,
BC = 15 m
angle ADE = 22°
angle ACB =47 °

tan22° = AE/DE

tan22° DE =AE ---------(1)

again,

tan47° = AB/BC

tan47° =(AE + BE)/BC

we know,
BCDE is rectangle ,
so,
CD = BE
BC =DE

now ,

tan47° =(tan22°BC + CD)/BC

tan47°. BC -tan22°BC =CD

CD =15(tan47° - tan22° ) m
=15(1.0723 -0.404 )
=15(0.6683)
=10.03 m

Answer 2

Answer:

answer is 10.03 metre

Step-by-step explanation:

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