Answer:
r=10.9cm
Q=12cm
S=14.42cm
Step-by-step explanation:
Pythagoras theorem states H²=b²+h²
H-hypotenuse
B-base
h-height
E.g q 4²+3²=HE
H=√25=5
13²=b²+5²
b²=169-25
b=√144=12
