Calculate the area and perimeter of
​

the answer is 13

step-by-step explanation:

5*5=25

12*12=144

25+144=169

169^2=13

m∠5 + m∠3 = m∠1   is true.

m∠5 + m∠6 = 180 is true

m∠2 +m∠3 = m∠6   is true

m∠2 +m∠3 +m∠5 = 180   is true