If a : b = 3 : 5, find (3a + 5b) : (7a – 2b).

If a : b = 3 : 5, find (3a + 5b) : (7a – 2b).

Solution:

The ratio of the shorter sides of a right-angled triangle is 5 : 12. If the perimeter of the triangle is 360 cm, find the length of the longest side.

Solution:

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