Answer:
Step-by-step explanation:
The acute angle is opposite to the height.
Let the height be h and the acute angle α.
Sides of the rhombus are equal, so each side will measure:
The ratio of height to hypotenuse is sine:
Work out the value of h:
- h =
- 10 sin α =
- 10 √(1 - cos² α) =
- 10 √(1 - 19/100) =
- 10 √(81/100) =
- 10 (9/10) =
- 9 cm
