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Someone help pls, its urgent! ASAP!! (Geometry)
“Complete the proofs”

Someone help pls, its urgent! ASAP!! (Geometry) “Complete the proofs”-example-1
User YFeizi
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1 Answer

18 votes
18 votes

Question 8

1)
\triangle ACE with
\overline{AC} \cong \overline{EC},
\overline{BC} \cong \overline{DC} (given)

2)
\angle C \cong \angle C (reflexive property)

3)
\triangle ACD \cong \triangle ECB (SAS)

Question 9

1)
\overline{PQ} and
\overline{PR} are the legs of isosceles
\triangle PQR,
\overline{PS} \cong \overline{QR} (given)

2)
\angle PSQ and
\angle PSR are right angles (definition of perpendicular lines)

3)
\angle Q \cong \angle R (angles opposite the legs of an isosceles triangle are congruent)

4)
\overline{PS} \cong \overline{PS} (reflexive property)

5)
\angle PSQ \cong \angle PSR (all right angles are congruent)

6)
\triangle PSQ \cong \triangle PSR (AAS)

Question 10

1)
\overline{AB} \cong \overline{CD},
\overline{AB} \perp \overline{BC},
\overline{CD} \perp \overline{AD} (given)

2)
\overline{AC} \cong \overline{AC} (reflexive property)

3)
\angle ABC and
\angle ADC are right angles (perpendicular lines form right angles)

4)
\triangle ABC and
\triangle ADC are right triangles (a triangle with a right angle is a right triangle)

5)
\triangle ABC \cong \triangle CDA (HL)

6)
\overline{AD} \cong \overline{CB} (CPCTC)

User Swaff
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