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pishuonlain [190]
3 years ago
12

Help Please!?

Mathematics
2 answers:
swat323 years ago
8 0
You can use sin cos or tan to solve this
lana [24]3 years ago
8 0

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.

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