...the convex surface of a right cone, or the slant surface of a right pyramid. RULE. — Multiply the circumference of the base by the slant height, or length of the side, and take half the product for the surface. FORMULAE. = $al, iz = — ,Z=— . la Also * = i cl', V...

...square pyramid, and so on. To find the concex surface of a right cone or pyramid. RULE :— Multiply the circumference of the base by the slant height or length of the side of the cone or pyramid, and half the product will be the surface required. And if this be added to...

...or pyramid , also to find the convex surface of a frustum oí a right cone or pyramid. RULE 1. — Multiply the perimeter or circumference of the base by the slant height, or length of the side of the cone, and half the product will be the slant surface, to which add the area of the base, and...

...perpendicular height, and the product will be the solidity. To FIND THE SURFACE OF A PYRAMID, o* CONE Multiply the perimeter, or circumference of the base, by the slant height, and 5 the product will be the surface of the •ides ; to which, if the base be added, the sum will...

...right cone, or the slant surface of a right pyramid. RULE. — Multiply the circumference or perimeter of the base by the slant height, or length of the side, and take half the product for the surface. 1. What is the solidity of a cone, the height CD of which...

...product will be the convex surface required. To find the convex surface of a right cone, or pyramid. — RULE. — Multiply the perimeter, or circumference...the base, by the slant height, or length of the side of the cone, and half the product will be the surface. To find the convex surface of a frustum of a...

...square feet, the surface. OF CONES AND PYRAMIDS. To find the Convex Surface of a Right Cone or Pyramid. RULE. — Multiply the perimeter or circumference of the base by the slant height, and half the product is the slant surface; if the surface of the entire figure is required, add the...