Question

5. Find the area of a triangle whose sides are
(ii) 12 cm, 9.6 cm and 7.2 cm.by using the
$\ \\ \sqrt{s(s - a)(s - b)(s - b)(s - c)} where \: s = (a \: + b \: + c) \div 2$
​

Answer 1

Step-by-step explanation:

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Answer 2

Answer:

The area of triangle is 34.56!!!

Step-by-step explanation:

Semi-perimeter=12+9.6+7.2÷2=28.8/2

=14.4

Area=√14.4(14.4-12)(14.4-9.6)(14.4-7.2)

=√14.4×2.4×4.8×7.2

=34.56