The length of a rectangle is 2cm more than its width. Calculate the perimeter of the rectangle when the width is 8cm.

36cm

Step-by-step explanation:

Perimeter of rectangle =2 ( L+B)

From the sentence,

Width = 8cm

Length = 8cm + 2cm = 10cm

Hence,

P = 2 ( 10 + 8)

= 2 × 18

= 36cm

Thus, the perimeter of the rectangle is 36cm

true statements:

a) x + y = y + x   ⇒ commutative property of addition

b) (x * y) * z = x * (y * z) ⇒ associative property of multiplication

d) (x + y) + z = x + (y + z) ⇒ associative property of addition

false statements:

c) x - y = y - x   should be: x - y = - y + x

e) (x - y) - z = x - (y - z) should be: (x - y) - z = x - (y + z)

step-by-step explanation:

step-by-step explanation: