Question

Help Please!?

Answer 1

You can use sin cos or tan to solve this

Answer 2

Answer: The value of x = 7 and the value of y = 7√2.

Step-by-step explanation:

Since we have given that

Let ABC is a right angled triangle , right angle at B.

AB = 7

BC = x

AC = y

∠ACB = 45°

We need to find the value of x and y:

As we know the "Trigonometric ratio":

$\tan 45^\circ=\frac{AB}{BC}=\frac{7}{x}\\\\1=\frac{7}{x}\\\\x=7$

Similarly,

$\sin 45^\circ=\frac{AB}{AC}=\frac{7}{y}\\\\\frac{1}{\sqrt{2}}=\frac{7}{y}\\\\y=7\sqrt{2}$

Hence, the value of x = 7 and the value of y = 7√2.