Question

Triangle P Q R is shown. Angle P Q R is a right angle. The length of hypotenuse P R is q, the length of P Q is r, and the length of Q R is p.,
Which cosine ratios are correct for ΔPQR? Check all that apply.

cos (P) = StartFraction r Over q EndFraction
cos (P) = StartFraction p Over q EndFraction
cos (Q) = StartFraction r Over p EndFraction
cos (R) = StartFraction r Over p EndFraction
cos (R) = StartFraction p Over q EndFraction

Answer 1

Answer:

1. cos (P) = StartFraction r Over q EndFraction

2.cos (R) = StartFraction p Over q EndFraction

Step-by-step explanation:

1.

$\cos(p) = \frac{r}{q}$

2.

$\cos(r) = \frac{p}{q}$

Answer 2

Answer:

• A and E

Step-by-step explanation:

cos = adjacent leg / hypotenuse

• cos (P) = r/q
• cos (R) = p/q