In the diagram above, ∠PRQ = 90°, ∠QPR = 30° and /PQ/ = 10 cm. Find y.
-
A.
6cm -
B.
5cm -
C.
4cm -
D.
3cm -
E.
2cm
Correct Answer: Option B
Explanation
(sin 30° = frac{y}{10})
(y = 10 sin 30° = 10 times 0.5 = 5 cm)
In the diagram above, ∠PRQ = 90°, ∠QPR = 30° and /PQ/ = 10 cm. Find y.
(sin 30° = frac{y}{10})
(y = 10 sin 30° = 10 times 0.5 = 5 cm)