Question

1. Triangle ABC is an equilateral triangle
2. Triangle ACD is an isosceles triangle with AC=CD. Angle CAD =5x+15°. Find x.​

Answer 1

Step-by-step explanation:

ac=ad

angle c = angle d=x

the sum of all the angles in a triangle is 180

‹A+‹C+‹D°=180°

5x+15+x +x =180

7x+15=180

7x=180-15

7x=165

x=165/7

Answer 2

Answer:

x = 13.6°

Step-by-step explanation:

ACD is an isosceles triangle

x+2(5x+15°) = 180°

x+10x+30° = 180°

11x = 150°

x = 13.6°