Mathematics for IGCSE & O level - Mensuration (Section 11 - No. 10)
Calculate the volume of a prism. 10cm long with each of these cross sections: Triangle with base 2cm, height 8.5cm
85 cm³
95 cm³
80 cm³
75 cm³
คำอธิบาย
Area of triangle = 1/2 * base * height = 1/2 * 2 * 8.5 = 8.5cm². Volume = 8.5 * 10 = 85 cm³