Question

Yoo I don't understand this pls help :))geometry ​

Answer 1

Answer:

At the bottom of the text.

Step-by-step explanation:

The triangle is isosceles. The measure of the two internal angles J and K are equal; The misure of the external K angle (2) is half a circle minus the internal K (1). The internal angle in R is calculated by difference between 180 and twice the internal K angle (1).

1. 72° as well.

2. 180-70-70 = 40°

3. $m\angle2 = 110 \rightarrow m\angle1 =70$, Same as #2: 40°

4. $x+2x+2x = 180 \rightarrow 5x=180 \righarrow x= 36$

5. $x +(x+30)+(x+30) = 180 \rightarrow 3x +60 = 180 \rightarrow 3x= 120 \rightarrow x=40$