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Mandarinka [93]
3 years ago
10

If RST XYZ, which statement must be true?

Mathematics
2 answers:
mafiozo [28]3 years ago
6 0

Answer: \angle{R}\cong\angle{X}

Step-by-step explanation:

Given: \triangle{RST}\cong\triangle{XYZ}

We know that if two triangles are congruent then their corresponding parts are congruent (CPCTC).

Therefore, \angle{R}\cong\angle{X}

\angle{S}\cong\angle{Y}

\angle{T}\cong\angle{Z}

\overline{RS}\cong\overline{XY}

\overline{ST}\cong\overline{YZ}

\overline{RT}\cong\overline{XZ}

From the given option the right option is \angle{R}\cong\angle{X}

olga nikolaevna [1]3 years ago
5 0
A because the angles match
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Step-by-step explanation:

2x + y - 12 = 0            Equation 1

x + y + 3 = 0                Equation 2

From two given equations, we can find the value of both x and y by finding the value of one variable from any one of the two equations in terms of other variable and putting it to other equation.

Solving equation 1

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Putting above equation in equation 3 in 2

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Putting value of 'x' in equation 3 to find the value of 'y'

                                      y=12-2(15)\\y=12-30\\y= -18

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