Question

in the adjoining figure triangle ABC is right angled triangle in which Angle B equal to 90 degree and Angle A equal to 30 degree and ac equals to 20 cm find BC and AB​

Answer 1

Answer:

hjj

Step-by-step explanation:

bbhhjbgbhvbncbbvbbcbk

Answer 2

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.