Question

1. complete the activity below, answering all of the questions.
2. when you have finished the guided practice activity, upload a screenshot of your score screen to earn credit for this activity.

challenge #1
fill in the missing words
lets start solving! first we try to find the measure of angle 1. to do this we will use our knowledge that the sum of the angles in a triangle add to \boxed{} degrees. we know that 19 + 41 = \boxed{}. since all the \boxed{} in a triangle need to add to 180 degrees, then we know that angle 1 + \boxed{} = 180 degrees. so the measure of angle 1 is \boxed{} degrees.

Explanation:

Step1: Recall triangle angle sum

The sum of angles in a triangle is $180^\circ$.

Step2: Calculate sum of given angles

$19 + 41 = 60$

Step3: Identify triangle angle rule

All the angles in a triangle sum to $180^\circ$.

Step4: Set up angle 1 equation

$\text{angle }1 + 60 = 180$

Step5: Solve for angle 1

$\text{angle }1 = 180 - 60 = 120$

Answer:

1. 180
2. 60
3. angles
4. 60
5. 120