Question

the angle of a triangle are in the ratio 2:7:11 the angle are

Answer 1

$\blue{\huge{\boxed{\star\: Solution \: \star}}}$

===> Let the angle be x

===> so the ratio will be 2x , 7x ,11x

====>
$\boxed{by \: angle \: sum \: property \: of \: triangle}$

===> 2x + 7x + 11x =180

===> 20x = 180

==>
$x = \frac{180}{20}$

==>x=9

So the angels are 2x ,7x & 11x

put the value of x

==> 2(9) =18°

==> 7 (9) =63°

===> 11 (9) = 99


$\red{ \boxed{ \underline{angles \: are \: 18 \: and \: 63 \: and \: 99}}}$

Answer 2

sum of angle of a triangle is 180 so,
2x+7x+11x=180
20x=180
x=9

now put the value of x than we will get the angles

2x=2*9=18
7x=7*9=63
11x=11*9=99

to verify add them if it is 180 then we are right

99+18+63=180.