Question

In Δ RST , ∠S=90°, Seg RT=12 cm , Seg ST=8 cm then , Seg RS= ______ *

A)10√8 cm

B)5√4 cm

C)4√5 cm
D)5 cm
​

Answer 1

In Δ RST , ∠S=90°, Seg RT=12 cm , Seg ST=8 cm then , Seg RS=4√5 cm

C)4√5 cm

Answer 2

Answer:

C) 4√5

Step-by-step explanation:

by Pythagoras theorem

RT2 = ST2+RS2

12^2=8^2+RS2

RS2=12^2-8^2

=144-64

=80

RS =√80

=√16×5

=4√5