Question

I. Area of rectangle and area of circlee are equal. radius of circle is 14 cm and breadth of rectangle is 6 cm. Find perimeter of rectangle.

II. Height of triangle is 8 cm and base is 4 cm . Find area of trngle.​

Answer 1

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Area of rectangle and area of circlee are equal. radius of circle is 14 cm and breadth of rectangle is 6 cm. Find perimeter of rectangle.

Height of triangle is 8 cm and base is 4 cm . Find area of triangle.

Answer:

Given,

• area of rectangle = area of circle
• area of circle : πr²

π × {14} ²

= 28×22

• area of rectangle = length × breadth

= length× 6cm

28×22 = length × 6

= 102.6cm

• perimeter is 2(length+breadth)= 217.2cm
• Area of triangle is give by

$\frac{1}{2}×height×base$

=

16cm²