For this case, we have that by definition, the triangle similarity theorem related to the angles, establishes that:
- <em>For two triangles to be similar, the angles of one of them must be congruent to the angles of the other triangle.
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On the other hand, we have:
- <em>For a pair of triangles to be similar, it is sufficient to have a congruent angle between the proportional sides.
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In addition, we have the following side theorem (SSS):
- <em>Two triangles that have the three proportional sides are similar to each other.
</em>
ANswer:
Two triangles that have the three proportional sides are similar to each other.
$200/5 lamps= $40 per lamp
Final answer: $40
125.6
Area of a circle = πr^2
Area of circle 1 = 3.14 × 11 × 11
=379.94cm^2
Area of circle 2= 3.14 × 9 ×9
=254.64cm^2
Area of a shaded region
=379.94cm^2 - 254.64cm^2
=125.60cm^2
