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Answer:
≈72,4
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Step-by-step explanation:
Look at the photo below for the details.
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Answer:
72.4 inch
Step-by-step explanation:
Length of the longest side = 30 inch
Let the length of two congruent side is x.
As the triangle is acute and the two sides are congruent, so it means it is an isosceles right angled triangle.
So, length of longest side is hypotenuse.
By use of Pythagoras theorem
[tex]hypotenuse^{2}=base^{2}+height^{2}[/tex]
[tex]30^{2}= x^{2}+x^{2}[/tex]
[tex]900^{2}=2x^{2}[/tex]
x = 21.2 inch
Perimeter = sum of all the sides
P = 30 + 21.2 + 21.2 = 72.4 inch
