Question:Calculation shows that an angle is `37 1°/2.` The size obtained by drawing and measurement is `36°`. The error percent is : 

A `1 1/2` 
B `3` 
C `4` 
D `4 1/6` 

+ Answer
C 

+ Explanation
Error on`37 1/2`

`= (37 1/2 - 36)`

`= 1 1/2`.

:. Error on `75/2 = 3/2.`

Error on`100 = (3/2 xx 2/75 xx 100)`

`= 4%`

+ Report

Irin Moni

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