Ryan went to lunch with his family. The cost of their meal was $130.
1 answer:
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Use the law of sines; see the attached picture.
Area by Heron's formula:
semiperimeter = (15 + 20 + 25)/2 = 60/2 = 30 cm
The formula of the area of a triangle: Area = 1/2 * base * height
1/2 * 25 * height = 150
12.5 * height = 150
height = 150/12.5
height = 12 cm
semiperimeter = (15 + 20 + 25)/2 = 60/2 = 30 cm
The formula of the area of a triangle: Area = 1/2 * base * height
1/2 * 25 * height = 150
12.5 * height = 150
height = 150/12.5
height = 12 cm