Lesson 7 Surface Area of Pyramids

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Lesson 7 Surface Area of Pyramids Unit 4B Measure Figures Lesson 7 Surface Area of Pyramids

Lesson 7: Surface Area of Pyramids Objective: Swbat find the surface area of pyramids. Do Now: Quick Check Worksheet

Lesson 7: Surface Area of Pyramids Definitions Lateral surface area is the sum of the areas of all its lateral faces. Slant height is the height of each lateral face.

Lesson 7: Surface Area of Pyramids Lateral area L.A. = ½ (Perimeter of the Base)(slant height) = 1Pl 2 Total Surface Area S.A. = Area of the Base + L.A. = B + 1Pl

Lesson 7: Surface Area of Pyramids Total Surface Area S.A. = Area of the Base + Area of Triangles

Lesson 7: Surface Area of Pyramids Rectangular Pyramid Net

Lesson 7: Surface Area of Pyramids

Lesson 7: Surface Area of Pyramids Example #1:

Lesson 7: Surface Area of Pyramids Example #2: 10 m 16 m area of base 43.3 m2

Lesson 7: Surface Area of Pyramids Example #3: The base of a square pyramid has a side length of 50 centimeters. The slant height is 32 centimeters. Find the surface area.

Lesson 7: Surface Area of Pyramids Example #4: An equilateral triangular pyramid has a slant height of 8.3 inches. The triangular base has a perimeter of 4.8 inches and an area of 1.1 square inches. Find the surface area of the pyramid.

Classwork Guided Practice: #1 - 4 Independent Practice: #1 - 7 Problem Solving Practice: # 1 - 6

Closure Question: What is the difference between lateral area and total surface area? Exit Ticket Homework: Practice #1 - 9

Exit Ticket Amado purchased a bottle of perfume that is in the shape of a square pyramid. The slant height of the bottle is 4.5 inches and the base is 2 inches. Find the surface area.

Homework