A student found the surface area of this pyramid.
Surface area = (12)(6) +
1
2
(12)(8) +
1
2
(6)(9.5)
= 72 + 48 + 28.5
= 148.5cm²
A net has a rectangle at the center and 4 triangles on the sides. The rectangle has a length of 12 centimeters and height of 6 centimeters. 2 triangles have a base of 12 centimeters and height of 8 centimeters. 2 triangles have a base of 6 centimeters and height of 9.5 centimeters.
What error did the student make?
The student should have used the same value for all of the triangular faces.
The student added only three of the five faces.
The student did not use the correct formula to find the area of the triangular faces.
The student did not find the correct area of the rectangular base.

Atrain traveled for 1.5 hours to the first station, stopped for 30 minutes, then traveled for 4 hours to the final station where it stopped for 1 hour. the total distance traveled is a function of time. which graph most accurately represents this scenario? a graph is shown with the x-axis labeled time (in hours) and the y-axis labeled total distance (in miles). the line begins at the origin and moves upward for 1.5 hours. the line then continues upward at a slow rate until 2 hours. from 2 to 6 hours, the line continues quickly upward. from 6 to 7 hours, it moves downward until it touches the x-axis a graph is shown with the axis labeled time (in hours) and the y axis labeled total distance (in miles). a line is shown beginning at the origin. the line moves upward until 1.5 hours, then is a horizontal line until 2 hours. the line moves quickly upward again until 6 hours, and then is horizontal until 7 hours a graph is shown with the axis labeled time (in hours) and the y-axis labeled total distance (in miles). the line begins at the y-axis where y equals 125. it is horizontal until 1.5 hours, then moves downward until 2 hours where it touches the x-axis. the line moves upward until 6 hours and then moves downward until 7 hours where it touches the x-axis a graph is shown with the axis labeled time (in hours) and the y-axis labeled total distance (in miles). the line begins at y equals 125 and is horizontal for 1.5 hours. the line moves downward until 2 hours, then back up until 5.5 hours. the line is horizontal from 5.5 to 7 hours