A farmer is designing a field for his new horse. In order for the field to fit into his farm, the angle θ must be less than 40◦,
calculate the size of the angle, with a suitable level of accuracy, and justify if the field will fit or not.
1 answer:
Answer:
The field will not fit
Step-by-step explanation:
To find the angle, we will use cosine rule;
c² = (a² + b² - 2abcosC)
C in this case is θ
Thus;
15² = (8² + 20² - 2(8 × 20)cos θ)
225 = (64 + 400 - 320cos θ)
464 - 225 = 320cos θ
cos θ = 239/320
θ = cos^(-1) 0.7469
θ = 41.68°
Thus angle is not less than 40° as recommended. Thus, the field will not fit.
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Answer:
this is a rubric for an assignment not the work :)
Step-by-step explanation:
yay brainlyest
i have no clue sorry i cant help you :)