The perimeter of a right angled triangle is 30cm and its area is 30cm square then find the side of triangle

What is the volume of a cone with a height of 6 cm in the radius of 2 cm

What is the area of the original rectangle? 8 cm² 20 cm² 25 cm² 40 cm²

The height of a plant, in inches, p years after planting it is given by the polynomial function r(p) = -2p% + 270p. find the height of the plant when p = 90 years.