olson1312
14.07.2019 •
Mathematics
Calculate the area of triangle abc if a = 7.9, b = 6.3 , and c= 8.5
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Ответ:
WE start with finding s= a+b+ c)/2 = ( 7.9 + 6.3+ 8.5) /2
= 11.35
Area of triangle = sqrt (11.35 * ( 11.35 - 7.9)( 11.35 - 6.3) ( 11.35 -8.5 ) )
sqrt ( 11.35 * 3.45 * 5.05 * 2.85)
sqrt (563.57)
23.739
Answer is 23.74 ( when round off )
Ответ:
About -1.67
Step-by-step explanation:
Hope this helps!