To measure the length of the pond, Jacob marked off congruent triangles as shown in the diagram. How does he know the lengths of AB and XY are equal?

answer   download the app called socratic on your phoner:

step-by-step explanation:

a. 32 degrees

step-by-step explanation:

here we have to use the rule.

m∠e = 1/2 (major arc - minor arc)

m∠e = 1/2 (212 - 148)

m∠e = 1/2 (64)

m∠e = 32 degrees

answer: a. 32 degrees

you

17

step-by-step explanation:

51/3=17

thus 17 is your answer.