Question

In a ΔABC, right angled at B, AB = 24 cm, BC = 7 cm. Determine
i-sinA,cosAii-sinC, cosC

Answer 1

Step-by-step explanation:

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Answer 2

Sin A = 7/25

Cos A = 24/25

Sin C = 24/25

Cos C = 7/25

Step-by-step explanation:

Given:  

In a ΔABC, right angled at B, AB = 24 cm, BC = 7 cm.

AC is the hypotenuse

BC is the adjacent

AB is the opposite.

By Pythagoras theoram, we know that AC = root of (AB² + BC²) = root of 625 = 25cm

 (i) Sin A = BC/AC = 7/25

   Cos A = AB/AC = 24/25

(ii) Sin C = AB/AC = 24/25

    Cos C = BC/AC = 7/25