Math, asked by lna, 4 months ago

In ΔABC, right angled at B, AB = 3 cm, AC = 6 cm. Find BC without pythagoras.

Answers

Answered by masterrrrrrr

0

Answer:

Draw a right angled △ABC using given instructions:

Here sin30=

AC

BC

2

1

=

AC

6

Or AC=12 cm

By Pythagoras theorem:

(AB)

2

=(AC)

2

−(BC)

2

=(12)

2

−(6)

2

=108

AB=6

3

cm.

Step-by-step explanation:

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