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Mathematics in Daily Life. 17’th group. Siti Zubaidah Purwaning Arum (123174015) Fevri Dwi Cahyani (123174. VIDEO. National Monument ( MONAS ). Monas. Tower or Monument Height of Monas The Construction of Monas. The Construction Was Built By 3 Steps :.
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Mathematics in Daily Life 17’th group
Siti Zubaidah Purwaning Arum (123174015) • Fevri Dwi Cahyani (123174
Monas • Tower or Monument • Height of Monas • The Construction of Monas
The Construction Was Built By 3 Steps : • First, on 1961/1962 – 1964/1965. • The second step was on 1966 – 1968. • The fanil step was 1969 – 1967.
The parts of monas A Puncak monas B The tower of monas Pelataran bawah C
Pyramid A three dimensional figure that the base is quadrilateral and the lateral face is triangle
The surface area’s formula of pyramid Luas Permukaan = Luas Alas + 4 ( Luas Segitiga) Luas Permukaan = ( S x S ) + 4 ( ½ x a x t)
Detail of Monas’s Measurement 5 m 6 m
pyramid 5 m T H G 93 m P 5 m F E D c O 6 m A B 6 m
The surface area of monas’s tower Surface area big pyramid – surface area small pyramid V. Big pyramid= VA V. Small pyramid= VB V. pyramid = VA – VB =[1/3(L.alas)A x t A] – [(1/3L.alas) B x t B =[1/3(s Ax s A x t A) – 1/3(s B x s B x t B)] =1/3[((s A) 2 x t A) – ((s B) 2 x t B)] T L = La x 4(L. ) H G P The base area F E c O A B
Berdasarkan rumus diatas, maka volume tugu monas dapat dihitung sebagai berikut : • V. pyramid =1/3 [((s A) 2 x t A) – ((s B) 2 x t B)] =1/3 [((6) 2 x 110) – ((5) 2 x 17)] =1/3[(36 x 110) –(25 x 17)] =1/3 [3960 – 425] =1/3 x 3535 m 3 =1178.3 m 3
Question BerapakahLuasPermukaandan Volume dari Limas disamping ?