Tuesday 14 January 2020
TRIGONOMETRY - PART - 29 - TRIGONOMETRICAL RATIOS - 100 PROBLEMS
ICSE MATHS CLASS 9 – PAGE -294
EXERCISE – 22(B) – PROBLEM – 20
In a triangle ABC, AD is perpendicular to BC, sin B = 0.8, BD = 9 cm and tan C = 1. Find the length of AB, AD, AC and DC.
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