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Mathematics in Daily Life. Mathematics Education 2012 A State University Of Surabaya. By Group 14 th Leny Fitryasari (123174012) Muhammad Naufal Faris (123174229). Do you know Bedugul lake????. Bedugul Lake. Bedugul lake located in the village Candikuning , Tabanan , Bali .
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Mathematics in Daily Life Mathematics Education2012 AState University Of Surabaya By Group 14th LenyFitryasari (123174012) Muhammad NaufalFaris (123174229)
Bedugul lake located in the village Candikuning, Tabanan, Bali. • Bedugul lake located at a height of more than 1000 meters from the surface of the sea. • In the middle of the Bedugul lake, there is a temple namely Ulun Danu temple.
UlunDanu Temple is a temple located in the village Candikuning, Tabanan, Bali. • This temple was built in 1663 in several islands. • This is the central praying temple to the Sang HyangDewi Danu, for give prosperity.
Ulun Danu Temple while the tide UlunDanu Temple while low tide
Ulun Danu Temple seen at day UlunDanu Temple seen at evening
Pyramid Trapezoid Ulun Danu Temple consist of trapezoids and pyramid
Trapezoid • Trapezoid is a quadrilateral which has one pair of parallel side. • AB and CD is parallel. • AD and BC are hypotenuse. b a
Formula The surface area of trapezoid b t Surface Area Height The Parallel Side a
3 m • One trapezoid of Ulun Danu Temple at the bottom side has AB = 5 m, CD = 3 m and hypotenuse = 2m. • The surface area of one trapezoid is 2 m 2 m t 2 m 1 m 1 m 1 m 5 m C D A B
The surface area of trpezoid 3 m 2 m 2 m 1 m 1 m 5 m Because there are 4 trapezoid in the bottom of Ulun Danu Temple, so the surface area of 4 trapezoid is
Pyramid • Pyramid – A three dimensional figure that the base is quadrilateral and the lateral face is triangle. Vertex E Height Slant Height Perimeter C D G F B A
Formula E The Surface Area of Pyramid Surface Area Lateral Area Base Area L D C B F B A Slant Height Base Perimeter Lateral Area
Pyramid of Ulun Danu Temple has AB = 1 m, EC = 1m. • The surface area of pyramid is E 1 m t D C F 0,5 m B A
E The Surface Area of Pyramid L D C F G B A B
Question 12 cm 1. Calculate the surface area of the pyramid with a perpendicular height 12 cm and base edge 10 cm. 10 cm
Answer The Surface area of Pyramid 12 cm 12 cm 12 cm 10 cm 5 cm 5 cm
9cm 2. Calculate the hypotenuse of trapezoid if given the surface area is 189 cm2. 18 cm
Answer The Surface area of trapezoid 9cm 14 cm 9 cm 18 cm