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3 years ago

Find the missing angle

Mathematics

2 answers:

Mamont248 [21]3 years ago

6 0

Answer:

110 Degrees

Step-by-step explanation:

Every interior triangle equalls 180 degress. So you subtract what you already have from 180.

30+40+x=180

70+x=180

180-70=110

BlackZzzverrR [31]3 years ago

5 0

A triangle is always equals to 180 so you have to do:
40+30=70
180-70=110
F=110°

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allochka39001 [22]

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The correct options to complete the proof are;

Opposite sides of a parallelogram; ABCD is a parallelogram

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Reasons:

The completed two column proof is presented as follows;

Statement ${}$ Reason

1. ABCD is a parallelogram ${}$ 1. Given

2. $\overline{AB}$ ≅ $\overline{DC}$ and $\overline{BC}$ ≅ $\overline{DA}$ ${}$ 2. Opposite sides of a parallelogram

3. $\overline{AC}$ ≅ $\overline{CA}$ ${}$ 3. Reflexive property of congruency

4. ΔABC ≅ ΔCDA ${}$ 4. SSS

The correct options are therefore;

Opposite sides of a parallelogram; ABCD is a parallelogram

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Reason 2. Opposite sides of a parallelogram, which is based on the

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Reason 3. The reflexive property of congruency, states that a side is

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Reason 4. SSS is an acronym for Side-Side-Side, which is a congruency

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Learn more about parallelograms here:

brainly.com/question/4218263

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