HELP
What is the name of the figure?

Im assuming a hexagon pyramid/cone???

Bc when you look at a square triangle its only called that becoause of its base??

it's hexagon cone

someone said that so yeah

i dont know

step-by-step explanation:

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