Calculate the side lengths a and b to two decimal places.
2 answers:
Answer:
A.)=24.78
B.)=26
C.)=7.33
D.)=25.44
Step-by-step explanation:
A.)11.40+13.38=24.78
B.)11+15=26
C.)4.18+3.15=7.33
D.)10.92+14.52=25.44
Answer:
D
Step-by-step explanation:
Using the Sine rule to find a and b
We require to find ∠ C
∠ C = 180° - (115 + 43)° = 180° - 158° = 22°
Then
= , substitute values
= ( cross- multiply )
a × sin22° = 6 × sin43° ( divide both sides by sin22° )
a = ≈ 10.92 ( to 2 dec. places )
---------------------------------------------------------
= , that is
= ( cross- multiply )
b × sin22° = 6 × sin115° ( divide both sides by sin22° )
b = ≈ 14.52 ( to 2 dec. places )
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