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tatyana61 [14]
1 year ago
13

I'm kinda lost in this problem. Can you teach me how to solve these ​

Mathematics
1 answer:
boyakko [2]1 year ago
8 0

53) Vertical angles are congruent, so m\angle IDA=121^{\circ}

54) \angle YDA and \angle YDF are supplementary, so m\angle YDA=180^{\circ}-121^{\circ}=59^{\circ}

55) Because vertical angles are congruent, m\angle FDI=59^{\circ}. Now, because DR bisects \angle FDI, this means m\angle RDI=\frac{59}{2}=29.5^{\circ}

56) This is a geometric sequence where the next term is obtained by multiplying the previous term by -2, so the next two numbers are 16, -32

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5 0
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Does anyone know this??
blagie [28]

Answer:

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Step-by-step explanation:

Since AB = BC  then the triangle is isosceles and the base angles are congruent, that is

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∠ ABC = 180° - (52 + 52)° = 180° - 104° = 76°

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4 0
3 years ago
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