triangle
ANS 2 - There is no 'best shape' - each bridge is designed for a particular place and can be almost any kind of construction.
An arch will stand most force.
a circle shape
yes because the pressure or weight on the bridge pushes down and the weight goes down the two sides. the triangle is best when it is in the downward "V" shape.
hammer,vibration and press of piles
a triangle :)
size and shape
A cable suspension bridge is a kind of bridge hung from cables.
The nickname of the Sydney Harbour Bridge is The Coathanger, in reference to its shape.
v-shaped
They both have an arc shape.
an arch
no