Answer:
<em>D. Point Y is the center of the circle that passes through points </em><em>D, E, and F.</em>
Step-by-step explanation:
Circumcenter-
- The circumcenter is the center of the triangle's circumcircle and circumcircle is the circle that passes through all three of the triangle's vertices.
- Circumcenter is the point where the perpendicular bisectors of a triangle intersect.
As point Y is the circumcenter of triangle DEF, so the circle, which is the circumcircle, with centre as Y must passes through the vertices D, E, F.
Answer:
Step-by-step explanation:
5= -1/3(6) + b
5= -2 +b
y= -1/3x+7
9514 1404 393
Answer:
m∠T = 45°
Step-by-step explanation:
The sum of angles in a triangle is 180°, so ...
(2x +10)° +(3x -9)° +(6x -19)° = 180°
11x -18 = 180 . . . . . collect terms, divide by °
11x = 198 . . . . . . . . add 18
x = 18 . . . . . . . . . . . divide by 11
Then the angle of interest is ...
m∠T = (3x -9)° = (3·18 -9)°
m∠T = 45°
_____
The other angles are ...
m∠S = 46°
m∠U = 89°
Answer:
-0.43
Step-by-step explanation:
100/-43