Application Based Questions
Q . Two equal sides of an isosceles triangle are each 5 cm more than the third side. If the perimeter of triangle is100 cm. find the length of the three sides .
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Answer:
Let one side be x cm
the two isosceles sides are x+5 cm & x+5 cm
the perimeter is x + x +5 + x+5
=3x + 10 cm
Given: the perimeter = 100 cm
Therefore, 3x + 10 = 100
3x = 100 - 10
3x =90
x = 90 ÷3
x = 30
The three sides are : x, x+5, x+5
i.e. 30cm, 35cm, 35cm
Step-by-step explanation:
Let one side be x cm
the two isosceles sides are x+5 cm & x+5 cm
the perimeter is x + x +5 + x+5
=3x + 10 cm
Given: the perimeter = 100 cm
Therefore, 3x + 10 = 100
3x = 100 - 10
3x =90
x = 90 ÷3
x = 30
The three sides are : x, x+5, x+5
i.e. 30cm, 35cm, 35cm
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