Question

Use the figure to find u.

Answer 1

u=2

Answer:

Solution given:

Relationship between base and hypotenuse is given by cos angle.

Cos 45°=base/hypotenuse

$\frac{1}{\sqrt{2}}=\frac{\sqrt{2}}{u}$

doing crisscrossed multiplication

$\sqrt{2}*\sqrt{2}=1*u$

u=2

Answer 2

Answer:

u = 2

Step-by-step explanation:

Since this is a right triangle, we can use trig functions

cos theta = adj side / hypotenuse

cos 45 = sqrt(2) / u

u cos 45 = sqrt(2)

u = sqrt(2) / cos 45

u = sqrt(2) / 1/ sqrt(2)

u = sqrt(2) * sqrt(2)

u =2