SOLUTION: what is the area of a scalene triangle with the side lengths as 5cm, 10cm and 7cm.

Algebra.Com
Question 806645: what is the area of a scalene triangle with the side lengths as 5cm, 10cm and 7cm.
Answer by Edwin McCravy(20054)   (Show Source): You can put this solution on YOUR website!

Calculate the semi-perimeter s =  using a=5, b=10, c=7

then find the area by Heron's formula:

A = √s(s-a)(s-b)(s-c)

Edwin
RELATED QUESTIONS

find the area of a triangle 5cm, 7cm, 10cm round to the nearest... (answered by mananth)
A scalene triangle has one side 5cm longer than the shortest side and another side 10cm... (answered by josgarithmetic)
What is the area of the smallest scalene triangle whose side lengths are prime numbers?... (answered by KMST)
The sides of a triangle are 7cm, 8cm and 5cm respectively. Find its... (answered by ikleyn,rothauserc)
Find the hypotenuse of a right triangle with leg measures of 10cm and... (answered by rfer)
can you make a triangle with the sides of 12cm,7cm, and 5cm (answered by josgarithmetic)
Which 3 lengths could be the lengths of the sides of a triangle? Need help. Thanks. (answered by Alan3354)
Which 3 lengths could be the lengths of the sides of a triangle? A. 9cm, 22cm, 11cm B.... (answered by richwmiller)
In triangle ABC . B = 60 deg c = 7cm and a = 10cm If M is the midpoint of BC find without (answered by Alan3354)