NCERT Exemplar Solutions
Class 7 - Mathematics - Unit 6: Triangles - Multiple Choice QuestionsQuestion 7
Class 7 - Mathematics - Unit 6: Triangles - Multiple Choice Questions
Question. 7
Lengths of sides of a triangle are 3 cm, 4 cm and 5 cm. The triangle is
(a)
(a) Obtuse angled triangle
(b)
(b) Acute angled triangle
(c)
(c) Right-angled triangle
(d)
(d) An Isosceles right triangle
Detailed Answer with Explanation:
By Pythagoras theorem, \(3^2 + 4^2 = 5^2\). Hence it is a right-angled triangle.