If ABD = (2x – 7)°, DBC = (8x + 16)°, and
ABC = 159º, find ABD.
1 answer:
Step-by-step explanation:
ABD+DBC+ABC =180° ( TRIANGLE)
(2x-7)°+(8x+16)°+159=180°
2x+8x-7°+16°+156=180
10x+165=180
10x=180-165
10x=15
x=15/10
x=1.5
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