tan x=5/12 tan y =3/4 and AB=48 m ; find the length of CD
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Answered by
2
Correct option is
B
45
tanx=
12
5
tany=
4
3
AB=48
Let CD=m
Then, tanx=
AC
CD
=
12
5
AC=
5
12m
tany=
BC
CD
=
4
3
BC=
3
4m
Given, AB=AC−BC
48=
5
12m
−
3
4m
48=
15
36m−20m
16m=48×15
m=45
Thus, CD=45 m
Answered by
1
Answer:
B
45
tanx=
12
5
tany=
4
3
AB=48
Let CD=m
Then, tanx=
AC
CD
=
12
5
AC=
5
12m
tany=
BC
CD
=
4
3
BC=
3
4m
Given, AB=AC−BC
48=
5
12m
−
3
4m
48=
15
36m−20m
16m=48×15
m=45
Thus, CD=45 m
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