Question

Use the figure to find u.

Answer 1

u = 2

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

Answer 2

u=2

Answer:

Solution given:

Relationship between base and hypotenuse is given by cos angle.

Cos 45°=base/hypotenuse

`(1)/(√(2))=(√(2))/(u)`

doing crisscrossed multiplication

`√(2)*√(2)=1*u`

u=2