Question

of the three side of a triangle are a, root 3a, root 2a , then the
the angle opposibe to the longest side is
a.45
b.30
c.60
d.90​

Answer 1

Answer:

Given a=a ,b=√3a c=2a

Here 2a> √3a> a .

By cosine rule we have

CosC=a²+b²-c²/2ab

CosC=a²+(√3a)²-(2a)²/2(a)(√3a)

= a²+3a²-4a²/2√3a²

=0

CosC= 0

Cos90°= CosC .

The angle opposite to the longest side is the longest angle.

Here pythagoras theorem is valid ,so it is a right angled triangle. Obviously 90° is the greatest angle

hope it helps u.

mark it as branlist..

follow me plz..

Answer 2

Answer:

your answer is 90

for the explain

upper vaale answer kooo dekhooo