About how much cardboard is needed to make the inner tube for a roll of paper if the tube has a diameter of 4.5 cm and is 24 cm long?

A. 127 cm^2 b. 144.5 cm^2 c. 172 cm^2 d. 50 cm^2

Is the power produced directly proportional to the wind speed, give reasons for your answer?

Tamar is measuring the sides and angles of tuv to determine whether it is congruent to the triangle below. which pair of measurements would eliminate the possibility that the triangles are congruent