Answer:
in the explanation
Step-by-step explanation:
rs=2^2+4^2=20cm
sq root of 20=4.472135955 (round down to how much you like, probably 1dp)
qt=4^2+8^2=80cm
sq root of 80= 8.94427191
for the other pic just do [tex]\sqrt{80}[/tex] takeaway [tex]\sqrt{20}[/tex], which is 4.472135955 and round down to how much u like
