if sides for triangle are 3cm , 4cm ,5cm and its perimeter is 20cm. Find its area
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Answer:
Hey buddy I think the question is wrong because the sum of the sides must be equal to it's perimeter
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Answer:
6 cm²
Step-by-step explanation:
Given: the sides of a triangle are 3 cm. 5 cm and 4
cm.
To find out: Area of triangle Solution:
The lengths of the sides are a=3 cm, b=5 cm,
c = 4 cm.
a+b+2_3+5+4 2 2 cm = 6 cm
We use the formula,
A=√s(s-a)(s-b)(s-c).
A= √6(6-3)(6-5)(6-4)cm²
=√6x3x1x2 sq.cm =
= 6 sq.cm
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