By counting the triangles could any length , benne figured out a pattern for the number of rods. For overall length sees 7 triangles and 6 rods connecting these triangles , so she writes 7 * 3 + 6 = 27 length L she writes N N = 3L + L - 3 Explain where she gets the 3L and the L - 1 her expression

i can you answer this question sweetie!

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

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