Right Triangle Trig Equations

Which equation do you use to solve for the missing side?

• sin(53) = x/11

• cos(53) = x/11

• tan(53) = x/11

Which equation do you use to solve for the missing side?

• sin(17) = x/19

• cos(17) = x/19

• tan(17) = x/19

• tan(17) = 19/x

Which equation would you use to solve for the missing angle?

• sin^-1(16/18) = ?

• cos^-1(16/18) = ?

• tan^-1(16/18)=?

• tan^-1(18/16)=?

Which equation would you use to solve for the missing side?

• sin(56) = x/13

• cos(56) = x/13

• tan(56) = x/13

• tan(56) = 13/x

• A
• B
• C
• D

Find each trig ratio.

sin D = ​ (a)  

cos D = ​ (b)  

tan D = ​ (c)  

• 20/29

• 21/29

• 20/21

• 29/20

• 29/21

• 21/20

In a right triangle, the acute angles have the relationship

sin (2x + 4) = cos (46).

What is the value of x?

• 20

• 21

• 24

• 25

Give each trig ratio as a fraction in simplest form for the given right triangle diagram.

sin Q - ​ (a)  

cos Q - ​ ​ (b)  

tan Q - ​​ (c)  

• 25/24

• 7/24

• 24/25

• 7/25

• 24/7

• 25/7

• A
• B
• C
• D

Find the ratio for sinA. (Reduce the fraction)

• 36/27

• 4/5

• 36/45

• 3/5