using heron's formula ,find the triangle whose sides are ,1.8m,8m,8.2m
Answers
Answer:
In triangle ABC'
LET AB=1.8m
BC=8m
CA=8.2m
PERIMETER=AB+BC+CA
=18m
semiperimeter= AB+BC+CA/2
=18/2
=9m
Using heron's formula
area of triangle ABC=√s(s-a)(s-b)(s-c)
=√9(9-1.8)(9-8)(9-8.2)
=√9(7.2)(1)(0.8)
=√9(5.76)
=√51.84
=7.2m²
∴Area of triangle ABC = 7.2m²
Answer:
Step-by-step explanation:
In triangle ABC'
LET AB=1.8m
BC=8m
CA=8.2m
PERIMETER=AB+BC+CA
=18m
semiperimeter= AB+BC+CA/2
=18/2
=9m
Using heron's formula
area of triangle ABC=√s(s-a)(s-b)(s-c)
=√9(9-1.8)(9-8)(9-8.2)
=√9(7.2)(1)(0.8)
=√9(5.76)
=√51.84
=7.2m²
∴Area of triangle ABC = 7.2m²