Question

What is the value of d to the nearest hundredth

Answer 1

Explanation:

This can be done by using the trignometric ratio of tangent in the ∆DEF . The two of its sides along 90° are 7.2 and d .

• In ∆ DEF :-

`\tt\to tan42^o = (EF)/(ED)\\\\\tt\to tan42^o =(d)/(7.2)\\\\\tt\to 0.9 = (d)/(7.2)\\\\\tt\to d =7.2* 0.9\\\\\tt\to\boxed{\orange{\tt d = 6.48 }}`