Question

The base of an isosceles triangle is 12 cm and its perimeter is32cm

Answer 1

Answer:

10cm

Step-by-step explanation:

in an isosceles triangle two sides are equal

so let the two sides be x

perimeter = 32cm

x + x + 12 = 32

2x + 12 = 32

2x = 32 - 12

2x = 20

x = 20 / 2

x = 10

The two sides of an isosceles triangle is 10cm

Answer 2

Answer:

We know that perimeter of a triangle is the sum of all three sides.

In an isosceles triangle,two sides are equal.

In ∆ABC,

=>AC=BC

perimeter=AC+BC+AC

32=AC+AC+12. (AC=BC)

2AC=32-12

2AC=20

AC=20/2

AC=10 cm

BC=AC=10cm

Here is your answer.

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