Q: Pre-AP Geo: GF CA Trigonometry "C" Test

While at an Australian zoo, a kid spots Forest the tallest giraffe. Using the dimensions shown in the figure, how tall is Forest? Round to 1 decimal place.

If chord BC is 63 cm, what is the length of the diameter of the circle? (Round your answer to 1 decimal place.)

What is the height of the tree from the ground to the top? (Round your answer to 1 decimal place.)

What is the length of GI? (Round your answer to 1 decimal place.)

Which equation is correct for solving the variable?

• sin 63º = a/89

• sin 63º = 89/a

• cos 63º = a/89

• tan 63º = a/89

• cos 63º = 89/a

How long is the hypotenuse?

Round to 1 decimal place.

Which equation is correct for solving the variable?

• tan 41º = x/23

• sin 41º = x/23

• cos 41º = x/23

• sin 41º = 23/x

• cos 41º = 23/x

Complete the equation:

cos xº = ​ (a)  

• 24/25
• 7/24
• 7/25
• 25/24
• 25/7

Complete the equation:

sin xº = ​ (a)  

• 60/61
• 60/11
• 11/61
• 11/60
• 61/60

Typing it in the Calculator: Which equation is the correct way the to find the value of the variable?

• r = 19 / sin 54
• r = 19 sin 54
• r = 19 cos 54
• r = 19 tan 54
• r = 19 / cos 54