The pentagon on the left is a reflection of the pentagon on the right. Ona coordinate plane, a pentagon is reflected over line A.

The pentagon is reflected over line
.

A

Step-by-step explanation:

If you reflect over line A both pentagons are equally spaced in proportion to the line

if x decreases by 4 then y increases by 10

step-by-step explanation:

< coa = 150 ( given)

as ba and bc are tangents

so oc and oa is perpendicular to cb and ab respectively because in circle normal passes through centre

so in quadrilateral oabc

< coa + < oab + < ocb + < abc = 360

150 +90+90 + < abc = 360

330 + < abc = 360

< abc = 360 -330 = 30

so < abc = 30

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