What is the volume of a triangular pyramid that is 4ft tall and has a base area of 3 square feet

Dylan and dusty plan to take weekly surfing lessons together. if the 2-hour lessons are $20 per person and they plan to spend $100 each on new surfboards, what is the maximum number of lessons the two can take if the total amount spent for lessons and surfboards is at most $480?

The center of the circumscribed circle lies on line segment and the longest side of the triangle is equal to the of the circle.

Thee blue triangle has rotated from quadrant i to quadrant iii about the origin. describe the effects of the rotation on the coordinates of the blue triangle.