3
Q. 6. Solve the following questions :
(1) From the information given in the figure,
А
3x
find the value of x and also sides AC and BC.
5 cm
2r
r
C
B
qual conical
Answers
Answered by
3
Answer:
Sum of all ∠s of a △=180
o
∴ 3x+2x+x=180
o
[Ref. image 1]
⇒6x=180
o
⇒x=30
o
In △ABC,
∠=90
o
,∠B=60
o
,∠C=30
o
[Ref. image 2]
tan60
o
=
AB
AC
3
=
5
AC
∴AC=5
3
cm
cos60
o
=
BC
AB
2
1
=
BC
5
∴BC=10cm
Step-by-step explanation:
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