Answer:
When we know all 3 sides, we use Heron's Formula
area = sqrt [s *(s-a) * (s-b) * (s-c)]
where "s" is the semi-perimeter which in this case equals
s = (6 + 8 + 12) / 2 = 13
area = sqrt [13 * 5 * 7 * 1]
area = sqrt 455
area = 21.3307290077
area = 21.33 square feet (rounded)
Step-by-step explanation:
Answer:
70
Step-by-step explanation:
Its 70 because you see the degree is 110 so try to subtract 180 degrees by 110 and you get 70 so it's the answer
You could not do that then you would gey 110.25 which is what is not the question
Answer:
19
Step-by-step explanation:
1-(-18)
=1+18
=19
Answer:
70.925 I believe
Step-by-step explanation: