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dimulka [17.4K]
3 years ago
5

29 mm 가 120 mm D What is the perimeter? millimeters

Mathematics
1 answer:
Stella [2.4K]3 years ago
7 0
Pythagoras theorem : a^2 + b^2 = c^2

20^2 + b^2 = 29^2

400 + b^2 = 841


841 - 400 = 441

Square root 441 = 21


PERIMETER :

21+29+20 = 70

The answer is 70
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