NCERT Exemplar Solutions
Class 7 - Mathematics - Unit 6: Triangles - Problems and SolutionsQuestion 127
Class 7 - Mathematics - Unit 6: Triangles - Problems and Solutions
Question. 127
The angles of a triangle are arranged in descending order of their magnitudes. If the difference between two consecutive angles is 10°, find the three angles.
Answer:
70°, 60°, 50°
Detailed Answer with Explanation:
Let angles = a, a−10, a−20. Sum = 3a−30 = 180 ⇒ 3a = 210 ⇒ a = 70. So angles = 70°, 60°, 50°.