ABCD is a quadrilateral.
AB = CD.
Angle DAB = angle CDA.

Prove that AC = BD.

answer: c i think

step-by-step explanation:

so, converting firstly the mixed fractions to improper fractions and then "adding".

answer: 4 meters

step-by-step explanation: to you understand 2/3 better you can do 1 divided by 3 = . then multiply that by the 2 which is .66666666666666667 then you would do 6 x .66666666666666667 which is 4.      

hope this .

a28=58

step-by-step explanation:

a1=a1+(n-1)d

a28= 4+ (28-1)2

a28=4+(27)(2)

a28=4+54

a28=58