С The two triangles in the diagram are similar.
There are two possible values of x.
x cm
Work out each of these values.
B
State both assumptions* you make in your working.
scale factor = 18/10 = 1.8
10 cm
AC = 15 x 1.8 = 27
SO X = 17
A
15 cm
15+3=18
18/15= 1.2
scale factor= 1.2
10x1.2= 12
12-10=2
I
x=2cm
E
3 cm
"You must state which triangles you are assuming to be similar