Two acute angles of a right-angled triangle are in the ratio 7 : 8.

If the two acute angles of a right-angled triangle are in the ratio 7 : 8, find these angles.

Solution:

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 11 Triangles and its Properties Check Your Progress 10

If the angles of a triangle are (3x)°, (2x – 7)° and (4x – 11)°, then find the value of x.

Solution:

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 11 Triangles and its Properties Check Your Progress 11

If the lengths of two sides of a triangle are 5 cm and 12 cm, then what can be the length of the third side?

Solution:

ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 11 Triangles and its Properties Check Your Progress 14

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