1
Question
Name the
types of following triangles:
(a) Triangle
with lengths of sides 7 cm, 8 cm and 9 cm.
(b) ΔABC
with AB = 8.7 cm, AC = 7 cm and BC = 6 cm.
(c) ΔPQR
such that PQ = QR = PR = 5 cm.
(d) ΔDEF
with m∠D = 90°
(e) ΔXYZ
with m∠Y = 90°
and XY = YZ.
(f) ΔLMN
with m∠L = 30°,
m∠M = 70°
and m∠N = 80°
Name the types of following triangles:
(a) Triangle with lengths of sides 7 cm, 8 cm and 9 cm.
(b) ΔABC with AB = 8.7 cm, AC = 7 cm and BC = 6 cm.
(c) ΔPQR such that PQ = QR = PR = 5 cm.
(d) ΔDEF with m∠D = 90°
(e) ΔXYZ with m∠Y = 90° and XY = YZ.
(f) ΔLMN with m∠L = 30°, m∠M = 70° and m∠N = 80°
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Solution
(a) Scalene
triangle
(b) Scalene
triangle
(c) Equilateral
triangle
(d) Right-angled
triangle
(e) Right-angled
isosceles triangle
(f) Acute-angled
triangle
(a) Scalene triangle
(b) Scalene triangle
(c) Equilateral triangle
(d) Right-angled triangle
(e) Right-angled isosceles triangle
(f) Acute-angled triangle
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