SOLUTION: if measure of angle A=60 degrees and side AB=5, then side BC=? It is a right triangle with the 90 degree angle at the top point of the triangle. So the triangle has A on right poi

Question 930798: if measure of angle A=60 degrees and side AB=5, then side BC=? It is a right triangle with the 90 degree angle at the top point of the triangle. So the triangle has A on right point of triangle, B on top point of triangle(where 90 degree angle is) and C on left point of triangle. I tried to solve by using tan, but the answer is not correct. The answer sheet says the answer is 5 sq rt 3. We haven't been taught how to do sine or cosine yet so I don't believe that will help me.
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
If B = 90
& A= 60
Then c=30 (A+C)=90
AB = 5
AB/BC= tan 30
AB/tan 30 = BC
5/(1/sqrt(3))=BC
BC = 5 sqrt(3)

RELATED QUESTIONS
triangle ABC is a right angle. if side AC = 5 and side BC = 6, what is the measure of... (answered by ikleyn)

in right triangle ABC, AB=20, AC=12, BC=16 and angle c is 90 degrees. find to the nearest (answered by Alan3354)

if in triangle ABC, the measure of angle B is greater than 90 degrees, and AB= BC, what... (answered by MathLover1)

Draw a right angled triangle ABC with vertical side AB, horizontal side BC and (answered by psbhowmick)
rewrite the statement in if-then form: all right triangles have an angle with a... (answered by richwmiller)
My daughter has asked my help with her math and it has been a very long time since I have (answered by ankor@dixie-net.com)
In the diagram of triangle ABC shown below, BC=10 and AB=16. To the nearest tenth of a... (answered by ankor@dixie-net.com)
abc is a right triangle. is side ac=5 and side ab=10 what is the measure of side... (answered by Fombitz)
find the measure of angle c in triangle abc to the nearest degree if angle a is 38... (answered by MathLover1)