nomer 1 sama 2 gimana??

1. 36.x=2160.24
36.x=51840
x=51840:36
x=1440mm-->m
=1,44m

2. a. AC phytagoras 3 4 5
? 8 10
AC=6

QR phytagoras 3 4 5

QR=5

b. Ya, karena sama-sama segitiga siku-siku