Find the measure of the missing side. Round your answer to the nearest tenth. (PYTHAGOREAN THEOREM)

19.2

Step-by-step explanation:

c=a2+b2=122+152≈19.20937

missing side: 9 yd

Step-by-step explanation:

Pythagorean theorem: a^2+b^2=h^2

15^2-12^2=missing side^2

225-144=81

√81=9

to find the perimeter of the rectangle this is the expression:

x-9+x-9+3x-4+3x-4=138

if we simplify it:

8x-26=138

remember, 138 is what it all adds up to

the length is 11.5cm

the width is 57.5cm

the area is 661.25cm^2

the answers might not be correct use at own risk