Applications of Trig

Which equation could be used to find the measure of one acute angle in the right triangle at the right?

• tanB = 14/9 

• cosA = 9/14

• tanB = 9/14

• sinA = 9/14

The slide at the playground has a height of 6 feet. The base of the slide measured on the ground is 8 feet. What is the length of the slide?

• 8 feet

• 5.29 feet

• 10 feet

• 14 feet

The bottom of a 13-foot straight ladder is set into the ground 5 feet away from a wall. When the top of the ladder is leaned against the wall, what is the distance above the ground it will reach?

• 12 feet

• 13.9 feet

Solve for the missing angle

• 50

• 0.053

• 36.9

• 95

The ratio in a right triangle of adjacent to hypotenuse is _____

• sine

• cosine

• tangent

• hypotenuse

Choose the correct ratio.

• sin(37)=x/14

• cos(37)=x/14

• tan(37)=x/14

• sin(37)=14/x

If height and distance is same ,then what will be the angle formed between horizontal line and line of sight

• 30 deg

• 45 deg

• 60 deg

• 90 deg

The length of the shadow of a 4 m high vertical pole on the level ground at an instant when the sun elevation is 60° is___

• 2 m

• 4√3 m

• 4⁄√3 m 

• 4 m

In a right triangle, hypotenuse is 10 cm long and an acute angle is 30°. What is the length of the side opposite to this angle?

• 5 cm

• 5√2 cm

• 10 cm

• None of the above

The angle of elevation of a point viewed is the angle formed by the ------------------- with the horizontal when the point being viewed is ------------------- the horizontal.

• sight , below

• line of sight , below

• line of sight , above

• sight , above