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Triangles and Types of Triangles – Maharashtra Board Class 6 Solutions for Mathematics

Contents

  • 1 Triangles and Types of Triangles – Maharashtra Board Class 6 Solutions for Mathematics (English Medium)
    • 1.1 Exercise-74
    • 1.2 Exercise-75

Triangles and Types of Triangles – Maharashtra Board Class 6 Solutions for Mathematics (English Medium)

MathematicsGeneral ScienceMaharashtra Board Solutions

Exercise-74

Solution 1:

  1. Exterior angles of the triangle are ∠AXY, ∠BXZ, ∠CZX, ∠DZY, ∠FYZ, and ∠EYX.
  2. Angles which are neither angles of the triangle nor its exterior angles are ∠AXB, ∠EYF, and ∠CZD.

Solution 2:

  1. ∠DPQ and ∠LPR.
  2. ∠PRM and ∠QRN.
  3. No, because ∠SQT does not form a linear pair with any angle of ΔPQR.
  4. ∠PQR.

Solution 3:

A triangle has 6 exterior angles in all.

Solution 4:

Points in the interior of the ΔXYZ Points on the ΔXYZ Points in the exterior of the ΔXYZ
Points M and N Points L and O Points T and K

Solution 5:

  1. ΔABC, ΔABO, ΔACO, ΔBOC
  2. ΔOAC, ΔOAB, ΔOBC
  3. ΔAOB, ΔAOC, ΔABC

Solution 6:
geometric-constructions-maharashtra-board-class-6-solutions-for-mathematics-ex(75)-5
Solution 7:

  1. ΔPQR, ΔPQT, ΔPRS, ΔPST
  2. ΔPST, ΔPSR, ΔPTR
  3. ΔPSQ, ΔPST
  4. ΔPTS, ΔPTQ
  5. ΔPQT, ΔPQR
  6. ΔPST, ΔPSR
  7. Points Y and Z
  8. Point U
  9. ∠PSQ and ∠PTR
  10. ΔPQS, ΔPQT, ΔPQR
  11. ΔPQR, ΔPSR, ΔPTR
  12. Points Y, E, U, Z, Q, R

Exercise-75

Solution 1:

Fig.1: A right angled triangle.
Fig.2: An isosceles triangle.
Fig.3: An obtuse angled triangle.
Fig.4: An acute angled triangle.
Fig.5: An equilateral triangle.
Fig.6: An obtuse angled triangle.

Solution 2:

  1. ΔABC is an acute angled triangle.
  2. ΔRST is an isosceles triangle.
  3. ΔLMN is a right angled triangle.
  4. ΔSDO is an obtuse angled triangle.
  5. ΔRTO is an equilateral triangle.
  6. ΔDEF is a scalene triangle.

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