Question

Draw a triangle ABC with AB-4.5 cm ,angle ABC=35 degree ,angle ACB=65 degree​. also bisect angle BAC
Pls answer it I don't know what is the answer pls ​

Answer 1

Step-by-step explanation:

Since the interior angles of any triangle add up to

180

∘

we know that the angle

A=180∘−35∘−65∘

=80∘

The Law of Sines states that

sinAa=sinBb=sinCc

Thus, to determine side a we can use side c

and angles

Aand C

sin80∘a=sin65∘4.5a

=4.5sin80∘

sin65∘

a=4.5×0.9850.906a

=4.890

Similarly, to determine side b we use

sin35∘b=sin65∘4.5b

=4.5sin35∘sin65∘

b

=4.5×0.574

0.906