Question

the figure Angle B equals to 90 degree and angle A =30egree AC= 10cm then AB=​

Answer 1

In triangle ABC,

Angle ABC=90°

Angle BAC=30°

Angle ACB=60°....(remaining angle of

triangle)

by 30°,60°,90° angle theorem,

AB=Root 3/2 AC

=Root 3/2 ×10

=Root 3 ×5

=5 root 3