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angle ABE measures 180°. Find the measures of angle ABD and angle DBE.
3x + 5
2x + 10
B
Enter the correct answers in the boxes.

angle ABE measures 180°. Find the measures of angle ABD and angle DBE. 3x + 5 2x + 10 B Enter the correct answers in the boxes. class=

Answer :

3x+5 + 2x+10 = 180

5x + 15 = 180

5x = 165

x = 165/5 = 33

angle ABD = angle CBE

angle CBE = 2x + 10 = 2(33) + 10 = 66+10 = 76

angle ABD = 76

angle DBE = angle ABC

angle ABC = 3x + 5 = 3(33)+5 = 99+5 = 104

angle DBE = 104

to confirm i didn't mess up

the sum of angles should be equal to 360

104*2 + 76*2 = 208 + 152 = 360

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