Question

triangle.
The base of an isosceles triangle is 12 cm and its perimeter is 32 cm. Find its area
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Answer 1

Step-by-step explanation:

Let

the side be x

perimeter = sum of all sides

32cm. =12cm + x+x

32-12. = 2x

20. = 2x

20/2. = x

10. =x

Thus, sides are 10 and 10

Answer 2

Answer:

we already know that in isosceles triangle two sides are equal so if base = 12 then remaining two sides are = x and x

so according to question :-

12+x+x = 32

2x = 32-12= 20

so x = 20/2 = 10

sides are 12,10,10

now

area = 1/2 * base * height= 1/2*12*10= 60cm^2

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