A) 82 m
B) 78 cm
C) 98 m
D) 88 m
Correct Answer: A
Solution :
In rectangle \[{{l}^{2}}+{{b}^{2}}={{d}^{2}}\] \[{{b}^{2}}={{d}^{2}}-{{l}^{2}}={{(29)}^{2}}-{{(20)}^{2}}\] \[=841-400=441\] \[b=21\,m\] Perimeter = 2(20 + 21) m = 82 mYou need to login to perform this action.
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