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topjm [15]
2 years ago
14

Find the values of x and y in the d

Mathematics
1 answer:
tia_tia [17]2 years ago
7 0

9514 1404 393

Answer:

  • x = 20
  • y = 10

Step-by-step explanation:

The angle marks show that ΔRST is isosceles, so RT = RS. They also show ΔRTU to be equilateral, so UT = RT.

  UT = RS

  x -5 = 15

  x = 20 . . . . . . add 5

__

ΔRTU is equilateral, so ∠RTU is 60°. The angle marked 3y° is complementary to that.

  3y = 30

  y = 10 . . . . . divide by 3

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