Answer :
Answer:
Set your calculator to degree mode.
a² = 9² + 10² - 2(9)(10)(cos(30°))
a² = 181 - 90√3
a = √(181 - 90√3)) = about 5.0 cm
Answer:
Set your calculator to degree mode.
a² = 9² + 10² - 2(9)(10)(cos(30°))
a² = 181 - 90√3
a = √(181 - 90√3)) = about 5.0 cm