Question

Find a. Round your answer to the nearest hundredth

Answer 1

a=9units

Answer:

solution given:

c=40° exterior corresponding angle

In right angled triangle

<c°+B°+90°=180° [Sum of interior angle of a triangle is 180°

B°=180°-40°-90°=50°

Relationship between base and hypotenuse is given by cos angle

Cos c°=base/hypotenuse

Cos40°=a/12

a=Cos40°×12=9.19or 9 units

Answer 2

Angle C is 40degree
Then Angle B is supposed to be 180-90-40 which will be 50 degree