Question

find the area of an isosceles triangle whose base is 6cm and perimeter is 16cm.​

Answer 1

Answer:

the answer is if the perimeter of isoceless triangle is 16 cm and base of the triangle is 6 cm, then equal sides are (16-6) / 2 = 5 cm .

Hence sides are 5 cm, 5 cm and 6 cm.

Area = begin mathsize 12px style square root of s open parentheses s minus a close parentheses open parentheses s minus b close parentheses open parentheses s minus c close parentheses end root space equals space square root of 8 cross times 2 cross times 3 cross times 3 end root space equals space 12 space s q. space c m end style

where s is semi-perimeter, s = (a+b+c)/2 . sides of triangle are a, b and c.

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