Sarah is 50 years old. she is twice as old as her friend bill and bill is 5 times as old as his sister jane. jane's mom is 12 ti
2 answers:
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Answer:
d. 690.1 units²
Step-by-step explanation:
1. You can use the Heron's formula to calculate the area of the triangle, which is:
Where:
2. Calculate :
3. Substitute values into the formula shown above and calculate the area, as following:
4. Therefore, the area is 690.1 units².