Question

in triangle ABC right angled at B, AB=5 cm and angle ACB = 30 degree then the length of the side BC​

Answer 1

Step-by-step explanation:

in triangle ABC,right angle at B

so, AC is hypotenuse

AB=5cm

angle ACB=30°

so, BC is the base and AB is the perpendicular.

tan 30=AB/BC

=> 1/√3=AB/BC

=> BC=√3AB=√3.5=5√3

so the length of the side BC is 5√3 cm