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Natalka [10]
3 years ago
13

Suppose △jcd≅△may△jcd≅△may. which other congruency statements are correct? select each correct answer.

Mathematics
2 answers:
stepan [7]3 years ago
8 0
Remember that congruent mean the length and the side of the shape is exactly identical. Based on that, i think the answers would be :

a. △cjd≅△amy△cjd≅△amy 
b. △dcj≅△yam△dcj≅△yam 

Hope this helps
sveta [45]3 years ago
4 0

The <em><u>correct answers</u></em> are:

a. △cjd≅△amy; and b. △dcj≅△yam

Explanation:

If two triangles are congruent, this means that all corresponding angles of one triangle are congruent to corresponding angles of the second triangle, and all corresponding sides of one triangle are congruent to corresponding sides of the second triangle.

We are given the statement  △jcd≅△may.  This makes the corresponding angles j and m; c and a; and d and y.

This means that △cjd would need to be congruent to △amy, since the angles match up.

This also means that △dcj would need to be congruent to △yam, since the angles match up.

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Answer:

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2 years ago
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mrs_skeptik [129]

Given:

Line a passes through (2, 10) and (4, 13).

Line b passes through (4, 9) and (6, 12).

Line c passes through (2, 10) and (4, 9).

To find:

Which of the lines, if any are perpendicular.

Solution:

If a line passes through two points, then the slope of line is

m=\dfrac{y_2-y_1}{x_2-x_1}

Line a passes through (2, 10) and (4, 13).  So, slope of this line is

m_a=\dfrac{13-10}{4-2}=\dfrac{3}{2}

Line b passes through (4, 9) and (6, 12).  So, slope of this line is

m_b=\dfrac{12-9}{6-4}=\dfrac{3}{2}

Line c passes through (2, 10) and (4,9).  So, slope of this line is

m_c=\dfrac{9-10}{4-2}=\dfrac{-1}{2}

Product of slopes of to perpendicular lines is -1.

m_a\cdot m_b=\dfrac{3}{2}\times \dfrac{3}{2}=\dfrac{9}{4}\neq -1

m_b\cdot m_c=\dfrac{3}{2}\times \dfrac{-1}{2}=\dfrac{-3}{4}\neq -1

m_a\cdot m_c=\dfrac{3}{2}\times \dfrac{-1}{2}=\dfrac{-3}{4}\neq -1

Therefore, any of these lines are not perpendicular to each other.

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3 years ago
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I hope this helps!!!!!!
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rjkz [21]
Hello.

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3 years ago
Perpendicular lines form a 90° angle. True<br> or false?
Evgen [1.6K]

Answer:

True

Step-by-step explanation:

7 0
3 years ago
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