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2 years ago

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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