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frez [133]
3 years ago
9

Could anyone help me out, it’s would mean a lot.

Mathematics
1 answer:
SIZIF [17.4K]3 years ago
6 0

Answer:

x = 19

Step-by-step explanation:

If two lines are perpendicular, they create 4 90° angles. Meaning, in this case, that m<DBC = 90 and m<DBA = 90.

We're given that m<DBE = 2x - 1 and that m<CBE = 5x - 42.

The sum of angles DBE and CBE = m<DBC = 90°

We can add the two angles and set it equal to 90 to find x

2x - 1 + 5x - 42 = 90\\7x - 43 = 90\\7x = 133\\x = \frac{133}{7} =19

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Given the parameters in the diagrams, we have;

4. ∆ABC ≈ ∆DEF by ASA

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<h3>How can the relationship between the triangles be proven?</h3>

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AB = DE Definition of congruency

<A = <D Definition of congruency

Therefore;

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5. Given;

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Therefore;

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Learn more about congruency postulates here:

brainly.com/question/26080113

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