Its a riddle I am a number between 60 and 100 my ones digit is 2 less then my tens digit i am a prime number
1 answer:
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Answer:
Perimeter = 78.7 inches
Step-by-step explanation:
From the given question, applying the Pythagoras theorem to one of the congruent triangles formed, we have;
=
+
= +
=841 + 81
= 922
hyp =
= 30.3645
The perimeter of the triangle can be determined as;
perimeter = +
+
= 30.3645 + 18 + 30.3645
= 78.729
The perimeter of the triangle = 78.7 inches