A child prepares a poster on save energy on a square sheet whose each side measures
60cm.At each corner of the sheet, she draws a quadrant radius 17.5cm, in which she
shows the ways to save energy. At, the centre she draws a circle of diameter 21cm
and writes slogan “Save energy” in it. Find the area of the remaining sheet
Answers
Step-by-step explanation:
Area of the square =60×60=3600 cm2
Diameter = 21cm
Area of Circle = π r^2 cm2
= 22/7 * 10.5 * 10.5
= 346.5 cm2
Area of quadrant = πr^2 / 4
= 22/7 * 17.5 * 17.5 / 4
= 962.5 / 4 = 240.625 cm2
We know there are 4 quadrants nd if we get required area then we will subtract these 4 quadrants and the central circle from area of square
Area of the remaining sheet =Area of square - area of circle - area of 4 quadrants
=3600−346.5 - (4* 240.625)
=3600−346.5- 962.5 cm2
= 3600 - 1309
= 2291 cm2
Answer:
A child prepares a poster on save energy on a square sheet whose each side measures
60cm.At each corner of the sheet, she draws a quadrant radius 17.5cm, in which she
shows the ways to save energy. At, the centre she draws a circle of diameter 21cm
and writes slogan “Save energy” in it. Find the area of the remaining sheet
