The perimeter of an isosceles triangle is 24cm. The unequal side is twice as long as the equal sides.
1 answer:
Answer:
Equal sides = 6cm each
Unequal side = 12cm
Step-by-step explanation:
Perimeter of a triangle = side a + side b + side c
Let
Side a = side b = x
Side c = 2x
Perimeter of the triangle=24cm
Perimeter of a triangle = side a + side b + side c
24 = x + x + 2x
24 = 4x
Divide both sides by 4
24 / 4 = 4x / 4
6 = x
x = 6
The equal sides = x = 6cm each
The unequal side = 2x
= 2(6)
= 12cm
Check:
Perimeter of a triangle = side a + side b + side c
= 6cm + 6cm + 12cm
= 24cm
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