Question

Determine the area of a triangle whese sides are 5 cm, 13 cm and 12 cm.
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Answer 1

Solution:-

The sides of triangles are

a = 5cm , b = 12cm , c = 13cm

$s=\frac{a+b+c}{2}=\frac{5+12+13}{2}=15cm$

$= \sqrt{s(s - a)(s - b)(s - c)}$

$= √[15 × 10 × 3 × 2] = \sqrt{900}=30cm²$

Answer 2

• a Side= 5
• 5 Base=13
• c Side=12

A= 30 cm²