An arch is a vertical curved structure that spans an elevated space and may or may not support the weight above it, or in case of a horizontal arch like an arch dam, the hydrostatic pressure against it.
The many forms of arch are classified into three categories: circular, pointed, and parabolic. Arches can also be configured to produce vaults and arcades.
<h3>Rounded/circular</h3>
Rounded/circular arches were commonly used for ancient arches that were constructed of heavy masonry. Ancient Roman builders relied heavily on the rounded arch to span great lengths.
<h3>The parabolic</h3>
The parabolic arch employs the principle that when weight is uniformly applied to an arch, the internal compression resulting from that weight will follow a parabolic profile. Of all forms of arch, the parabolic arch produces the most thrust at the base yet can span the greatest distances.
Therefore, the parabolic arch is more structurally sound.
learn more about arches from here: brainly.com/question/3836440
It should be noted that essay writing is to students in order to test their writing and reading skills.
<h3>How to write an essay</h3>
Based on the information given, the way to write the essay will be given. Firstly, it's important to decide on your topic. In this case, the topic is to explain why the technology are beneficial to the users of the gautrain.
Research should be done on the topic and create an essay outline. Set your argument in the introduction and develop it with evidence.
Finally, check the content, grammar, formatting, spelling, of your essay.
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Answer:
I think its location manager sentence
Explanation:
the awncer is 3 i hope this helps
