16
h(x)=−(x−2)
2
+16

126 maybe. sorry

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

answer: 1475

step-by-step explanation:

becuase you have to know what they are asking you