SA cones and pyramids

What is the formula for finding the surface area of a cone?

• SA = πr²+πrl
• SA = ¹∕₃πr²h
• SA = πr²+πdh

Tags

CCSS.7.G.B.6

Find the surface area of the pyramid.

• 15m²
• 16m²
• 18m²
• 20m²

A square pyramid is covered with decorative wrapping paper with no overlap.  The net of the box is shown on the right.  How many square centimeters of wrapping paper are needed to cover the surfaces of the box? 

• 108 cm²
• 324 cm²
• 180 cm²
• 432 cm²

Find the surface area of the cone. Leave your answer in terms of pi.

• 12π m²

• 16π m²

• 24π m²

• 8π m²

Tags

CCSS.7.G.B.4

CCSS.7.G.B.6

Find the lateral area and surface area of each figure. Round your answers to the nearest tenth, if necessary.

• 183.0 cm²; 233.2 cm²
• 188 cm²; 259 cm²
• 83.7 cm²; 93.2 cm²
• 190 cm²; 240 cm²

Find the surface area

• 128.1 yd sq
• 511.8 yd sq
• 365.5 yd sq
• 493 yd sq

Find the surface area.

• 728.5 cm sq
• 1007.9 cm sq
• 1513.5 cm sq
• 1462 cm sq

What is surface area?

• 1339.73 sq units
• 703.36 sq units
• 320.78 sq units
• 742.04 sq units

What is the surface area of the cone?

• 91.374 in²
• 56.52 in²
• 169.56 in²
• 28.3 in²