Mathematics
Grade-7
Easy

Question

Jason is painting a circle on a wall of area 75.8 square inch. Determine the largest distance across the circular painting.

  1. 10
  2. 8
  3. 9
  4. 16

hintHint:

largest distance across the circular wall = diameter

The correct answer is: 10


    l a r g e s t space d i s tan c e space a c r o s s space t h e space c i r c l e space b e space a space d i a m e t e r left parenthesis d right parenthesis
d i a m e t e r space equals space 2 cross times r a d i u s
A r e a space equals pi r squared equals 75.8
r squared equals fraction numerator 75.8 over denominator 3.14 end fraction
r squared equals 25
r equals text 5 inches end text
d space equals space 5 cross times 2
space space space space space equals space 10

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