Question

in tirangle ABC, right-angled at B, AB = 5cm and angle ACB = 30 then the length of the side BC is
(a) 5 root3
(b) 2 root3
(c) 10 cm
(d) none of these

Answer 1

Step-by-step explanation:

here

$tan(C) = \frac{opposite}{ajecent} = \frac{AB}{BC}$

$tan(30)= \frac{5cm}{BC}$

$\frac{1}{ \sqrt{3} } = \frac{5cm}{BC}$

$BC=5 \sqrt{3} cm$

Answer 2

Your : Answer is 5root 3

First we draw right angle triangle

and draw according to our question