Answer:
n = 6
Step-by-step explanation:
Since the triangles are similar then the ratio of corresponding sides are equal, that is
=
, substitute values
=
( cross- multiply )
6n = 36 ( divide both sides by 6 )
n = 6
A=12
120% of a =80% of b
120%a = 80%b
120a/100 = 80b/100
Divide through by 100
120a = 80b
Divide through by 80
120a/80 = b
But a=12
120x 12/80 = b
18 = b
b = 18
a+b = 12 + 18 = 30
<h2>these are called transversal lines</h2><h2>so, the answer is option B</h2><h2>hope it helped :-)</h2>