Question

right angle triangle ABC. right angled at B and angle C is 30°.if AB=20CM then AC will be​

Answer 1

Answer:

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Step-by-step explanation:

Draw a right angled △ABC using given instructions:

Here sin30=

AC

BC

2

1

=

20

BC

Or BC=10 cm

By Pythagoras theorem:

(AB)

2

=(AB)

2

−(BC)

2

=(20)

2

−(10)

2

=300

AB=10

3

cm.

solution