Question

the base of an isoceles triangle is 10cm and one of it's equal sides is 13cm.find it's area using herons formula​

Answer 1

Step-by-step explanation:

Given sides = (a)10cm, (b)13cm, 13 cm(c)

s = a + b + c/2

= 36/2 cm

= 18 cm

Therefore, area = root over s(s - a)(s - b)(s - c)

= √36 × 26 × 23 × 23

= 138 root 26 cm2

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