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HACTEHA [7]
3 years ago
8

1. ΔABC and ΔDEF are similar = Given

Mathematics
2 answers:
NISA [10]3 years ago
7 0

Answer:

Option D is correct

\text{Slope of AC} = \text{Slope of DF}

Step-by-step explanation:

Given:

1.

ΔABC and ΔDEF are similar

Property of similar states that corresponding sides are in proportion.

2.

\frac{BC}{EF} = \frac{AB}{DE} [By property of similar triangles]

Property of proportions allows you to cross multiply the equation.

then;

3.

\frac{AB}{BC} = \frac{DE}{EF}   [Property of proportion]

Definition of slope: Slope is described as the steepness and direction of line.

then by definition of slope;

4.

\text{Slope of AC} = \frac{BC}{AB}

5.

\text{Slope of DF} = \frac{EF}{DE}

6.

Substitution property of equality states that:

If a = b then a can be substituted in place of b in any equation or vice-versa.

then;

\text{Slope of AC} = \text{Slope of DF}

Therefore, the missing step in 6 we get,

\text{Slope of AC} = \text{Slope of DF}

deff fn [24]3 years ago
3 0
I think the answer is d. The slope of AC=Slope of DF.

Hope this helped☺☺
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