Question

Find the cosine ratio for ∠K
a. 4/5
b. 5/3
c. 3/5
d. 4/3

Answer 1

As Per Given Information

we have been asked to determine the consine ratio of ∠K .

`\bf \: cos \: k = \cfrac{Base}{Hypotenuse}`

with respect to ∠K .

substitute the given value & let's solve it for k .

`\longrightarrow\sf \: cos \: k \: = \cfrac{30}{50} \\ \\ \\ \longrightarrow\sf \: cos \: k \: = \cfrac{ 3\cancel0}{5 \cancel0} \\ \\ \\ \longrightarrow\sf \: cos \: k \: = \cfrac{3}{5}`

Therefore,

• Cosine ratio for ∠k is 3/5

Your answer is (c) 3/5