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Eleventh Grade (Grade 11) Triangles Questions

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Grade 11 Triangles
Triangles that have the exact same shape but different area are called                      .
  1. Similar Triangles
  2. Regular Polygons
  3. Tangents
  4. Equilateral Triangles
  5. Isosceles Triangles
Grade 11 Triangles
If a triangle has no equal sides and no equal angles then it is
  1. right.
  2. scalene.
  3. obtuse.
  4. isosceles.
Grade 11 Triangles
The sides of [math]Delta ABC[/math] form the ratio [math]9:10:11[/math]. If the perimeter of the triangle is [math]15 \ "units"[/math], what is the area of the triangle?
Equilateral Triangle ABC v1
  1. [math]3.9 \ "units"^2[/math]
  2. [math]10.6 \ "units"^2[/math]
  3. [math]42.4 \ "units"^2[/math]
  4. [math]122.3 \ "units"^2[/math]
Grade 11 Triangles
If a triangle has no equal sides and one right angle, then it is which of the following types of triangles?
  1. Scalene Acute
  2. Isosceles Right
  3. Scalene Right
  4. None of the above
Grade 11 Triangles
In [math]Delta ABC[/math] , [math]AB = 1.3 \ "units"[/math], [math]BC = 1.7 \ "units"[/math], and [math]AC = 1.9 \ "units"[/math]. What is the area of the triangle rounded to one decimal place?
Isosceles Triangle ABC v2
  1. [math]0.2 \ "units"^2[/math]
  2. [math]0.7 \ "units"^2[/math]
  3. [math]0.9 \ "units"^2[/math]
  4. [math]1.1 \ "units"^2[/math]
Grade 11 Triangles
In [math]Delta ABC[/math], [math]AB = 5.2 \ "units"[/math], [math]AC = 4.4 \ "units"[/math], and [math]BC = 2.5 \ "units"[/math]. What is the area of the triangle?
Obtuse Triangle ABC v3
  1. [math]5.5 \ "units"^2[/math]
  2. [math]31.7 \ "units"^2[/math]
  3. [math]50.2 \ "units"^2[/math]
  4. [math]78.6 \ "units"^2[/math]
Grade 11 Triangles
In [math]Delta ABC[/math], [math]AB = 5.4 \ "units"[/math], [math]BC = 14.3 \ "units"[/math], and [math]AC = 16.2 \ "units"[/math]. What is the area of the triangle, rounded to one decimal place?
Acute Triangle ABC v2
  1. [math]9.0 \ "units"^2[/math]
  2. [math]35.1 \ "units"^2[/math]
  3. [math]37.9 \ "units"^2[/math]
  4. [math]51.7 \ "units"^2[/math]
Grade 11 Triangles

This question is a part of a group with common instructions. View group »

Express the area of [math]Delta ABC[/math] using the standard formula for the area of a triangle.
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