Question

Find the length y of the minute hand in 3 sf
Please help

Answer 1

Answer:

135 cm

Step-by-step explanation:

$\cos(43) = \frac{75}{y}$

$y = \frac{75}{ \cos(43) }$

$y = 135$

Answer 2

Answer:

y ≈ 102 cm

Step-by-step explanation:

Using the cosine ratio in the right triangle

cos43° = $\frac{adjacent}{hypotenuse}$ = $\frac{75}{y}$ ( multiply both sides by y )

y × cos43° = 75 ( divide both sides by cos43° )

y = $\frac{75}{cos43}$ ≈ 102 cm ( to 3 sf )