Q: Geo Trigonometry Test Review #1

Which equation is correct for finding x?

• sin 30º = 16/x
• sin 30º = x/ 16
• cos 30º = x/ 16
• tan 30º = x/ 16
• cos 30º = 16/x

Find the value of x of the rhombus. (Round to 1 decimal place, if necessary.)

Find the perimeter of the rhombus. (Old review....just add up the 4 sides.)

Find the value of y of the rhombus. (You may use Pythagorean theorem or trigonometry to find y.) (Round to 1 decimal place, if necessary.)

Find the area of the rhombus. (More old review...) (Round to 1 decimal place, if necessary.)

Which equation is correct for finding x?

• tan 23º = x/135
• sin 23º = x/ 135
• cos 23º = x/135
• sin 23º = 135/x
• cos 23º = 135/x

Find the height (x) of the tree. (Round to 1 decimal place, if necessary.)

What is the area formed by the triangle? (Old review to awaken the brain.) (Round to 1 decimal place, if necessary.)

Which equation is correct for finding x?

• tan 26º = x/78
• sin 26º = x/78
• cos 26º = x/78
• sin 26º = 78/x
• cos 26º = 78/x

Find the value of x. (Round to 1 decimal place, if necessary.)