Question

Help me please thank you​

Answer 1

#18

Just observe the naming you can answer without seeing the diagram even

∆ABC~∆QRS

• RS is at end so it is similar to BC

Option D.

#19

• <A~<Q

Option B

#20

Let that be x

• Ratio remains same

`\\ \tt\hookrightarrow (45)/(70)=(9)/(x)`

`\\ \tt\hookrightarrow (9)/(14)=(9)/(x)`

`\\ \tt\hookrightarrow x=14in`

Option D

Answer 2

18

RS = BC

19

angle A = angle Q

20

real blueprint

we know 45 9 width

we're looking for 70 n

45 x n = 70x 9

n = 630 : 45 = 14

=> 14 in