Question

Name the types of following triangles:
(a) ∆ with m∠ = 120° and PQ = QR
(b) ∆ with m∠ = 60°, ∠ = 80°, ∠ = 40°
(c) ∆DEF with DE = 6cm, EF = 7.5cm and DF = 8cm

Answer 1

• isosceles and obtuse angled triangle
• acute angled triangle
• scalene triangle