Answer:
point lies on circle
Step-by-step explanation:
Substitute the coordinates of the point into the left side of the equation and if equal to the right side then point lies on circle.
(4 - 1)² + (2 + 2)² = 3² + 4² = 9 + 16 = 25 = right side
Then point (4, 2 ) lies on the circle
Answer:
im just commenting to get points
Step-by-step explanation:
If the question was -20.48 divided by -4 then the answer is 5.12
Use the distance formula to find the length of the sides, then add them up to find the perimeter.

For points in the form of (x1, y1), (x2, y2).
(-1, 2), (3, 1)




(3, 1), (7, 2)




(7, 2), (-1, 2)




So the perimeter will be:
<span>Since it is isosceles, we know that the other base angle is also 40°
</span><span>Three interior angles of every triangle totals 180°
</span><span>x° + 80° = 180°
</span><span>x° = 100°</span>