SOLUTION: find the area of the triangle with the following dimension, a=4cm,b=13,c=15cm

Question 1143340: find the area of the triangle with the following dimension, a=4cm,b=13,c=15cm
Found 2 solutions by josgarithmetic, greenestamps:
Answer by josgarithmetic(39630) (Show Source): You can put this solution on YOUR website!
Picking c=15 for the base, and angle A using Law Of Cosines,

area is .
Answer by greenestamps(13209) (Show Source): You can put this solution on YOUR website!

Heron's formula gives the area of a triangle in terms of the lengths of the three sides:

where s is the semiperimeter.

The formula looks scary; but it is easy to use.

(1) find the semiperimeter:
(2) find the differences between the semiperimeter and each side: ; ;
(3) evaluate:

The area of the triangle is 24 square units.
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