Question

I need help with questions 9 & 11 please help

Answer 1

9) The rectangles are similar since the angles are equal and the sides are proportional.

So the answer is YES.

10)In triangle ABC and NML,

`\begin{gathered} \angle L+\angle N=90 \\ \angle L=90-55=35 \end{gathered}`

So angle L = angle C

angle M= angle B=90

So the triangles are similar by AA test.

So the answer is YES.

11) Since the triangles are similar the sides are proportional so it follows:

`\begin{gathered} (12)/(3)=(20)/(x) \\ x=(20)/(4) \\ x=5 \end{gathered}`

Hence the value of x is 5.