This polygon has 4 sides 180(4-2) = 180(2) = 360 degree 80+90+2x + 3x = 360 170+5x = 360 5x = 190 x= 38 measure of angle t is 2(38)= 76 the answer is c. trust me hope this !
Answer from: Quest
How am i goonna know explain
Answer from: Quest
just sum
10 + 10 = 20
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