Question

in a triangle abc if ab is 6under root 3 cm bc=6cm and ac=12cm the ∠b is​

Answer 1

Answer:

$ac^{2} = ab^{2} + bc^{2} \\ 12 ^{2} = ab ^{2} + 6^{2} \\ 144 = ab ^{2} + 36 \\ 144 - 36 = b^{2} \\ 108 = ab^{2} \\ ab = \sqrt{108 } \\ ab = 54 \:$

this is answers

Answer 2

Answer:

Answer:

\begin{gathered}ac^{2} = ab^{2} + bc^{2} \\ 12 ^{2} = ab ^{2} + 6^{2} \\ 144 = ab ^{2} + 36 \\ 144 - 36 = b^{2} \\ 108 = ab^{2} \\ ab = \sqrt{108 } \\ ab = 54 \: \\\end{gathered}

ac

2

=ab

2

+bc

2

12

2

=ab

2

+6

2

144=ab

2

+36

144−36=b

2

108=ab

2

ab=

108

ab=54

this is answers