Euclidean geometry Grade 12 Questions and Answers:Euclidean geometry is a mathematical system attributed to Alexandrian Greek mathematician Euclid, which he described in his textbook on geometry: the Elements. Euclid’s method consists in assuming a small set of intuitively appealing axioms, and deducing many other propositions from these.
Types of triangles
Name | Diagram | Properties |
Scalene | ![]() | All sides and angles are different. |
Isosceles | ![]() | Two sides are equal in length. The angles opposite the equal sides are also equal. |
Equilateral | ![]() | All three sides are equal in length and all three angles are equal. |
Acute-angled | ![]() | Each of the three interior angles is less than 9090°. |
Obtuse-angled | ![]() | One interior angle is greater than 9090°. |
Right-angled | ![]() | One interior angle is 9090°. |
Congruent triangles (EMCJ2)
Condition | Diagram |
SSS(side, side, side) | ![]() |
SAS(side, incl. angle, side) | ![]() |
AAS(angle, angle, side) | ![]() |
RHS(9090°, hypotenuse, side) | ![]() |
Source:https://intl.siyavula.com/read/maths/grade-12/euclidean-geometry/08-euclidean-geometry-01
Euclidean Geometry Grade 12 Questions and Answers (Downloadable pdf)
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