1. Lenda obtained 70 marks out of 80 in mathematics find the percentage of marks obtained by her in mathematics . spammers= reported
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question ;

Lenda obtained 70 marks out of 80 in mathematics find the percentage of marks obtained by her in mathematics

answer with explanation ;

we have to find out the percentage .

let ,

x% of 80 = 70 = x/100 × 80 = 70x =

there is also another method , refer the attachment

You have 2 sides that are 2 cms and you have 6 sides that are 1/2 cm and you have 4 sides that are 1 cm. the smallest sides are 1/2 the medium sized sides are 1 and the smallest are 1/2. so to find the perimeter you have to add them all up together so your answer will be 11 cm's