Question

Can u plz help me step by step

Answer 1

Answer:

x=8

Step-by-step explanation:

8x-5=51

x=61+5÷8

x=8

AB=51

BC=29

CD=51

AD=29

Answer 2

It's a rectangle, so length of its opposite sides will be equal.

So, 8x - 5 = 51

→ 8x = 51 + 5

→ 8x = 56

→ x = 56/8

→ x = 7 cm

Now, breadth (b) = 5x - 11

Put x = 7

→ b = 5(7) - 11

→ b = 35 - 11

→ b = 24 cm

And, length (l) = 51 cm

So, perimeter (P) of rectangle is 2(l + b)

→ P = 2( l + b)

→ P = 2(51 + 24)

→ P = 2(75)

→ P = 150 cm

Hence, Perimeter of given diagram will be 150 cm