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Name the types of following triangles : ...

Name the types of following triangles :
(a) Triangle with lengths of sides `7 cm, 8 cm and 9 cm`.
(b) `/_\ABC` with `AB=8.7 cm`, `AC=7 cm` and `BC =6cm`.
(c) `/_\PQR` such that `PQ=QR=PR=5cm`.
(d) `/_\DEF` with `/_D = 90^@`
(e) `/_\XYZ` with `/_Y = 90^@` and `/_XY = /_YZ`
(f) `/_\LMN` with `/_L = 30^@`, `/_M = 70^@` and `/_N = 80^@`.

Text Solution

Verified by Experts

a) Scalene triangle
b) Scalene triangle
c) Equilateral triangle
d) Right angled triangle
e) Isosceles right angled triangle
f) Acute angle triangle.
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Knowledge Check

  • Arrange the angles of the triangle from smallest to largest in the triangle, where the sides are AB = 7 cm, AC = 8 cm, and BC = 9 cm.

    A
    A,B,C
    B
    C,B,D
    C
    C,B,A
    D
    B,A,C

  • Arrange the angles of the triangle from the smallest to the largest in the triangle, where the sides are AB = 7 cm, AC = 8 cm, BC = 9 cm.

    A
    C, B, A
    B
    B, A, C
    C
    C, B, D
    D
    A, B, C

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