Question

ABC is a right angled at b and tan A =4/3

.if ac =15 cm then find the length of bc

Answer 1

Answer:

5 cm

Step-by-step explanation:

$AB^{2} + BC^{2}  = AC^{2} \\4^{2} + 3^{2} = AC^{2} \\16 + 9 = AC^{2} \\AC^{2} = 25\\AC = \sqrt{25} \\AC = 5 cm$

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