Question

Find the values of x and y in the d

Answer 1

9514 1404 393

Answer:

• x = 20
• y = 10

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