1.

The sum of the circumference of a circle and the perimeter of the rectangle is 480cm. the area of the rectangle is 168cm². if the ratio of the radius of the circle to the breadth of the rectangle is 19:2, find the radius of the circle and the length of the rectangle.​

Answer»

Step-by-step EXPLANATION:

LET the RADIUS of circle be 19x and breadth of rect be 2x.

perimeter of rect=2 (l+b),circumference of circle =2×22/7×19x

168=2 (l+2x)+44/7×19x

84=l+2x+22/7×19x

Now solve for X



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