Tuesday 14 January 2020

TRIGONOMETRY - PART - 27 - TRIGONOMETRICAL RATIOS - 100 PROBLEMS

ICSE MATHS CLASS 9 – PAGE -294
EXERCISE – 22(B) – PROBLEM – 18
In rhombus ABCD, diagonals AC and BD intersect each other at point 0.
If cosine of angle CAB is 0.6 and OB = 8 cm, find the lengths of the side and diagonals of the rhombus.


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