Opposite, adjacent, hypotenuse, sin, cos, tan

• Wiskunde
• Middelbare school
• vwo
• Leerjaar 3

Look at angle Z.
XZ is the ...

1. adjacent
2. hypotenuse
3. opposite

Look at angle Z.
XY is the ...

1. adjacent
2. hypotenuse
3. opposite

Look at angle Z.
YZ is the ...

1. adjacent
2. hypotenuse
3. opposite

Look at angle H.
The opposite side is ..

1. IU
2. UH
3. HI

Look at angle H.
The hypotenuse is ..

1. IU
2. UH
3. HI

Look at angle H.
The adjacent side is ..

1. IU
2. UH
3. HI

Look at angle Y.
Side L is ..

1. adjacent
2. hypotenuse
3. opposite

The opposite side is ...

1. J
2. K
3. L

Which ratio
represents cos A?
(CAH)

1. 5:13
2. 12:13
3. 12:5
4. 13:5

Which ratio
represents sin P?
(SOH)

1. 6:10
2. 8:10
3. 6:8
4. 10:6

What is tan C?
(TOA)

1. 8:15
2. 17:15
3. 8:17
4. 15:17

Practise with sin/cos/tan

Homework

 Do ex. 9 (chapter 6) in your book.

and do this quiz: https://quizizz.com/join?gc=50128780

Remember:

Do you have the degrees of the angle and you want to know the ratio? 

Use sin, cos, tan

Do you have the ratio and you want to know the size of the angle? 

Use sin-1 (shift-sin), cos-1 (shift-cos), tan-1 (shift-tan)