Free Printable Special Right Triangle Trig Ratio

1.

Evaluate without a calculator: sin 30°

a)

√2

b)

√2 /2

c)

1/2

d)

√3/2

2.

What is the cosine of angle P?

a)

$\frac{p}{q}$

b)

$\frac{q}{r}$

c)

$\frac{p}{r}$

d)

$\frac{r}{q}$

3.

sin u = _______

Simplify ratio if needed.

a)

$\frac{3}{5}$

b)

$\frac{4}{3}$

c)

$\frac{5}{4}$

d)

$\frac{4}{5}$

4.

Find value x of by writing a trig equation & solving for x.

Round to the nearest hundredth or the 2nd decimal place.

Write number only, NOT x = #,

(a)

5.

For this 45-45-90 triangle what is the length of the legs?

a)

2

b)

6

c)

3

d)

$3\sqrt{2}$

e)

$2\sqrt{3}$

6.

Find the value of y.

a)

8

b)

4

c)

2√3

d)

8√3

7.

Find x, then find Area of the triangle round to the nearest whole number.

a)

27

b)

40.5

c)

47

d)

23

8.

Find the value of y.

a)

$6\sqrt{3}$

b)

$3\sqrt{6}$

c)

9

d)

$6\sqrt{6}$

9.

What ratio represents $\sin\ y$ ?

a)

$\frac{a}{b}$

b)

$\frac{c}{a}$

c)

$\frac{a}{c}$

d)

$\frac{b}{c}$

10.

Find the measure of the indicted angle to the nearest tenth.

a)

75.1°

b)

14.9°

c)

14.4°

d)

0.3°

11.

Find the length of the indicated side to the nearest tenth.

a)

7.22

b)

9.0

c)

9.6

d)

15.9

12.

Find the length of the indicated side to the nearest tenth.

a)

18.5

b)

5.7

c)

1.7

d)

19.4

Special Right Triangle Trig Ratio

Total questions: 12

Worksheet time: 12mins

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