Question

Find the cosine of angle P. A.20/29 B.21/29 C.20/21 D.21/20

Answer 1

20/29 is the cosine because it’s adjacent over hypotenuse

Answer 2

Answer:

$\cos P=\dfrac{21}{29}$

B is correct

Step-by-step explanation:

In the given figure, we need to find cosine of P

In ΔPRQ, ∠R=90°. So, triangle PRQ is a right angle triangle. We can apply trigonometry identity.

As we know,

$\cos\theta=\dfrac{\text{Base}}{\text{Hypotenuse}}$

In given triangle, For angle, ∠P

Base = 21

Hypotenuse = 29

Substitute into formula and we get

$\cos P=\dfrac{21}{29}$

Hence, The cosine of P is $\dfrac{21}{29}$