the equal sides of an isosclea triangle are 5 units less than twice the third side of a triangle providing its perimeter is 75units 35 25 29 41
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the equal sides of an isosclea triangle are 5 units less than twice the third side of a triangle providing its perimeter is 75units 35 25 29 41
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Let two equal sides be x
Now thrid side = 2x-5
Perimeter = 75 units
Perimeter of a Triangle = A + B + C
= x + x + 2x - 5 = 75
= 4x -5 = 75
= 4x = 80
= x = 80/4
= x = 20 units
Two sides each= A =B = 20 units
Third side = C = 40-5 = 35 units
Answer:
17
Step-by-step explanation:
Let the third side be x
the isosocles side =2x-5
perimeter=sum if all sides
=x+2x-5+2x-5
=5x-10=75
therefore x=85÷5=17