SOLUTION: Find the area of each triangle
1st triangle - 12,18,20
2nd triangle- angle 37 degrees, side 11, side 8
Algebra.Com
Question 1157447: Find the area of each triangle
1st triangle - 12,18,20
2nd triangle- angle 37 degrees, side 11, side 8
Answer by ikleyn(52780) (Show Source): You can put this solution on YOUR website!
.
For the first triangle, apply the Heron's formula.
On Heron's formula, see the lesson
- Proof of the Heron's formula for the area of a triangle
- One more proof of the Heron's formula for the area of a triangle
in this site.
For the second triangle, use the formula for a triangle area
area = ,
where "a" and "b" are the lengths of the two given sides of the triangle and is the angle between them.
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