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37 votes
Determine the value of x

Determine the value of x-example-1
User Vikash Kumar
by
2.5k points

1 Answer

10 votes
10 votes

Answer:

22

Explanation:

By using trigonometry,

sin 45° = x/4

x = 4sin 45°

x = 22

By using Pythagorean theorem,

Since you know that it is an isosceles triangle and it's also a right-angled triangle,

4² = x² + x²

16 = 2x²

x² = 8

x = √8

= 2√2

User Charles Smith
by
3.2k points