Question

Please answer this question now in two minutes

Answer 1

Explanation:

using 30°

we use cos

• cos 30 =10√3/U
• U = 10√3/Cos30 =20cm

using 60

we use Sin

• Sin 60=10√3/U
• U = 10√3/Sin60 = 20

Answer 2

20

Explanation:

use the cos or sin function to solve