OT 20 Select the best answer for the question
11. The length of a rectangle is 12 in, and the perimeter is 56 ir
O A. 16 in
B. 21 in
C. 22 in
D. 32 in
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wfirfkfr/jjfi; jn; p/ojkfvlbvmkmgkgkkkgkkg

step-by-step explanation:

see explanation

step-by-step explanation:

a

(6r + 7) + (13 + 7r) ( remove brackets and collect like terms )

= 6r + 7 + 13 + 7r

= 13r + 20

b

remove brackets and collect like terms

13 - r - 1 + r

= 12 - r

c

remove brackets and collect like terms

= - 8 - r + 2r - 4

= - 12 + r

d

remove brackets and collect like terms

= 7r - - - 6r

[-   - = - - = - ]

= r -

∡ eia and ∡ kij are congruent

step-by-step explanation: