Question

Please help me This in due in 45 mins T^T

Answer 1

Set your calculator to degree mode.

Question 4.2:

cos(27.3°) = x1/12.7

x1 = 12.7cos(27.3°) = about 11.3 cm

sin(19.2°) = x2/(12.7cos(27.3°))

x2 = sin(19.2°)•12.7cos(27.3°) = about 3.7 cm

Question 4.1:

sin(28°) = 9/x1

x1•sin(28°) = 9

x1 = 9/sin(28°) = about 19.2 cm

sin(63°) = (9/sin(28°))/x2

x2•sin(63°) = 9/sin(28°)

x2 = 9/(sin(28°)•sin(63°)) = about 21.5 cm

Question 12:

x = 35√2 cm

Question 10:

tan(68°) = x/21

x = 21tan(68°) = about 52.0 cm