Questlon6 of 10 Which of the following are mathemattcal sentencea? Check all tht apply
OA. 4x
G Br12
D. 34
E47wA

19.1 units

Step-by-step explanation:

Sides CB and DA your length are equals

Sides AB and DC your length are equals

Using the Pythagoras Theorem:

c² = a² + b²

Side AB:

c² = 1² + 5²

c² = 1 + 25

c² = 26

√c² = √26

c = 5.1     aprox.

Side CB:

c² = 2² + 4²

c² = 4 + 16

c² = 20

√c² = √20

c = 4.472     aprox

then:

the perimeter:

p = AB + BC + CD + DA

AB = CD = 5.1

DA = BC = 4.472

p = 2(5.1 + 4.472)

p = 2(9.572)

p = 19.144    aprox.

then the correct optión is:

19.1 units