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  2. AA postulate - Wikipedia

    en.wikipedia.org/wiki/AA_postulate

    In Euclidean geometry, the AA postulate states that two triangles are similar if they have two corresponding angles congruent. The AA postulate follows from the fact that the sum of the interior angles of a triangle is always equal to 180°. By knowing two angles, such as 32° and 64° degrees, we know that the next angle is 84°, because 180 ...

  3. Similarity system of triangles - Wikipedia

    en.wikipedia.org/wiki/Similarity_System_of_Triangles

    In sum, a configuration is a similarity system when all triangles in the set, lie in the same plane and the following holds true: if there are n triangles in the set and n − 1 triangles are directly similar, then n triangles are directly similar. [1]

  4. Similarity (geometry) - Wikipedia

    en.wikipedia.org/wiki/Similarity_(geometry)

    There are several elementary results concerning similar triangles in Euclidean geometry: [9] Any two equilateral triangles are similar. Two triangles, both similar to a third triangle, are similar to each other (transitivity of similarity of triangles). Corresponding altitudes of similar triangles have the same ratio as the corresponding sides.

  5. Similar triangles - Wikipedia

    en.wikipedia.org/?title=Similar_triangles&...

    Similarity (geometry)#Similar triangles To a section : This is a redirect from a topic that does not have its own page to a section of a page on the subject. For redirects to embedded anchors on a page, use {{ R to anchor }} instead .

  6. File:Pythagoras similar triangles simplified.svg - Wikipedia

    en.wikipedia.org/wiki/File:Pythagoras_similar...

    English: Simplified version of similar triangles proof for Pythagoras' theorem. In triangle ACB, angle ACB is the right angle. CH is a perpendicular on hypotenuse AB of triangle ACB. In triangle AHC and triangle ACB, ∠AHC=∠ACB as each is a right angle. ∠HAC=∠CAB as they are common angles at vertex A.

  7. Lainey Wilson jokes she might propose to boyfriend in 2025 ...

    www.aol.com/lainey-wilson-jokes-she-might...

    Lainey Wilson is looking forward to popping the question in 2025. Well, kind of. The 32-year-old "Heart Like A Truck" crooner teased her engagement hopes for this year in a new interview with her ...

  8. Heron's formula - Wikipedia

    en.wikipedia.org/wiki/Heron's_formula

    A triangle with sides a, b, and c. In geometry, Heron's formula (or Hero's formula) gives the area of a triangle in terms of the three side lengths ⁠, ⁠ ⁠, ⁠ ⁠. ⁠ Letting ⁠ ⁠ be the semiperimeter of the triangle, = (+ +), the area ⁠ ⁠ is [1]

  9. Mortgage and refinance rates for Jan. 6, 2025: Average rates ...

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    10-year fixed rate . 6.30%. 5/1 adjustable rate mortgage ... After increasing the target interest rate 11 times from March 2022 to July 2023 in an ... which locks in an interest rate and ...

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