Answer:
Area: ½ × base × height
Perimeter: sum of side lengths of the triangle
Number of vertices: 3
Number of edges: 3
Internal angle: 60° (for equilateral)
Sum of interior angles: 180°
Line of symmetry: 3
Step-by-step explanation:
original: -5, 1
Final: 2, 1
this isn't an equation
8y² - 72 = 8(y² - 9)
= 8(y + 3)(y - 3)
1.6 hours
in x+3y=4
x = 3y +4 y = -1/3x + 4/3
in -x+y=4
x = y−4 y = x+4
