Tuliskan setiap nombor berikut dalam bentuk piawai.
(a) 2 938
(b) 320 000
Penyelesaian
Friday, March 2, 2018
Bab 1 - Contoh 5
Putrajaya, Bandar Raya Pintar meliputi kawasan seluas 4815 hektar.
Hitungkan luas kawasan Putrajaya dalam m^2 dengan memberi jawapan
tepat kepada 3 angka bererti.
Diberi 1 hektar bersamaan dengan 2.471 ekar dan 1 ekar bersamaan dengan
4 047 m^2.Hitungkan luas kawasan Putrajaya dalam m^2 dengan memberi jawapan
tepat kepada 3 angka bererti.
Penyelesaian
TRUSS
TRUSS
Reference
: https://en.wikipedia.org/wiki/Truss
In
engineering, a truss is a structure that "consists of two-force
members only, where the members are organized so that the assemblage as a whole
behaves as a single object". A
"two-force member" is a structural component where force is applied
to only two points. Although this rigorous definition allows the members to
have any shape connected in any stable configuration, trusses typically
comprise five or more triangular units constructed with straight members whose
ends are connected at joints referred to as nodes.
In this typical context, external forces and reactions to
those forces are considered to act only at the nodes and result in forces in
the members that are either tensile or compressive. For straight members, moments (torques) are explicitly excluded because, and only because, all the joints in a truss
are treated as revolutes,
as is necessary for the links to be two-force members.
A planar truss is one where all members and nodes lie within
a two dimensional plane, while a space truss has members and nodes that extend
into three dimensions. The top beams in a truss are calledtop chords and are typically in compression, the bottom beams are called bottom
chords, and are typically in tension.
The interior beams are called webs, and the areas inside the webs
are calledpanels.
1.4.3 Wali
1.4.3 Wali
1.4.3.1 | Susunan wali |
Rajah 1.4.3.1 : Susunan wali
Perpindahan wali perlulah mengikut keutamaannya seperti susunan wali di atas
Bab 1 - Contoh 4
Hitungkan nilai bagi setiap yang berikut dengan memberi jawapan betul kepada 2 angka bererti.
(a) 0.729 ÷ 0.3 - 0.46
(b) 435 + 212 x 0.3
Penyelesaian
(a) 0.729 ÷ 0.3 - 0.46
(b) 435 + 212 x 0.3
Penyelesaian
Bab 1 - Contoh 3
Bundarkan 0.003 045 kepada | |||||||||||||||||||||||||||||||
(a) 3 angka bererti | |||||||||||||||||||||||||||||||
(b) 2 angka bererti | |||||||||||||||||||||||||||||||
(c ) 1 angka
bererti
|
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