The sides of a triangle are 42cm,34cm and 20cm.Calculate its area and the length of the height on the longest side.
Nikki57:
whats the answer?
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Hi friend,
The area of triangle with 3 sides will be solved using Heron's formula.
√p(p-a)(p-b)(p-c)/2
Where p is a+b+c/2
Now let's start solving,
a=42cm
b=34cm
c=20cm
Now let's find p,
p= 42+34+20/2
p=96/2
p=48 cm
Now let's find area using Heron's formula,
√48(48-42)(48-34)(48-20)
√48(6)(14)(28)
√112896
=336 cm^2
I hope this is the answer.
Hope it helped you.................
The area of triangle with 3 sides will be solved using Heron's formula.
√p(p-a)(p-b)(p-c)/2
Where p is a+b+c/2
Now let's start solving,
a=42cm
b=34cm
c=20cm
Now let's find p,
p= 42+34+20/2
p=96/2
p=48 cm
Now let's find area using Heron's formula,
√48(48-42)(48-34)(48-20)
√48(6)(14)(28)
√112896
=336 cm^2
I hope this is the answer.
Hope it helped you.................
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