The equivalent equation is d=17+12.5
it simplifies to d=29.5
If that 25/4 is a fraction them the answer is 53/4. Or in simplest form 3 5/16 or 3.3125
Answer:
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Answer:
Step-by-step explanation:
40°+31°=71°
trinagle =180°
180°-71°=109
180-109=71°
X=71°