Question

Can you please help me understand how to solve this

Answer 1

Hope you understand this

Explanation:

HAVE A GOOD DAY!

Answer 2

m<ACD=113

Option B is the right option.

solution,

<A=2x-9

<B=4x+2

<ACD=5x+13

The exterior angle of a triangle is sum of two opposite interior angles.

m<A+m<B=m<5x+13

`or \: 2x - 9 + 4x + 2 = 5x +13 \\ or \: 2x + 4x - 9 + 2 = 5x + 13 \\ or \: 6x - 7 = 5x + 13 \\ or \: 6x - 5x = 13 + 7 \\ x = 20`

Replacing value,

`angle \: acd \\ = 5x + 13 \\ = 5 * 20 + 13 \\ = 100 + 13 \\ = 113`

Hope this helps....

Good luck on your assignment..