1.angle RST is congruent to angle XYZ means that (2n+10)°=60° and to find the n you need to 2n+10=60
2n+10-10=60-10
2n÷2=50÷2
n=25
2.measure of angle Y= measure of angle RST
means Y=60°
3.measure of angle Z is equal to measure of angleRTS means
Z=80°
4.a triangle can measure all angle to 180°means
60+80-180=X
X=40°
5. 6
6. 5
7. 10
Step-by-step explanation:
I wish I help thanks
