We have two similar triangles.
A ( small ) = 10.5 m²
A ( large ) = 94.5 m²
h ( small ) = ? and h ( large ) = 9 m.
A s : A l = h s² : h l ²
10.5 : 94.5 = h s² : 9²
h s² * 94.5 = 81 * 10.5
94.5 h s² = 850.5
h s² = 850.5 : 94.5
h s² = 9
h s = √ 9
h s = 3 m
Answer: The altitude of the smaller triangle is 3 m.
Yo diria que se trata de topografia, ya que este muestra un diseño o mapa casi similar al relieve real ,si es que hay depresiones,curvas entre otros.( diria yo aunque la geologia también es algo similiar a ese concepto pero yo diria que es topografia,de todas maneras espero que te sirva)
These large owls mainly live in the Arctic in open, treeless areas called tundra.
The correct answer is - days or years before the major earthquake.
The foreshocks always come before the major earthquake. They can appear only a single day before it, weeks, months, or even years. It is a nice indicator that something bigger is coming, so if people are wary enough they can avoid the devastating effects of the major seismic activity afterwards.
For example, we can take the foreshocks and the major earthquake in Ohrid, Republic of Macedonia, in the summer of 2016, where the foreshocks started about two months earlier, and they were present every day for those two months, slightly increasing in intensity, until the major earthquake of 6.9 magnitude according to the Richter scale came.
