Harriet has $25 in her savings account. She will add $5 each week and not take any money out of her account. Which expression re
1 answer:
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Answer:
A
Step-by-step explanation:
We require to find ∠ A
Subtract the sum of the given angles from 180
∠ A = 180° - (85 + 53)° = 180° - 138° = 42°
Using the Sine rule in Δ ABC, that is
=
, that is
=
( cross- multiply )
AC × sin42° = 85 × sin85° ( divide both sides by sin42° )
AC = ≈ 126.6
