Questions Related to maths

Multiple choice maths area and its boundary unit of area units of area units of area and volume

The area of square is equal to area of rectangle with length$8mm$ and breadth$2m$.Find its area in $cm^2$

  1. $160cm^2$
  2. $1.6cm^2$
  3. $.16cm^2$
  4. $none$
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Rectangle area = 8 mm * 2 m = 0.8 cm * 200 cm = 160 cm^2. Since the square has the same area, the square's area is 160 cm^2.

Multiple choice maths measures and motion unit of area units of area units of area and volume

A Pizza Seller makes a circular pizza of perimeter $44cm$.Find its area in$m^2$

  1. $.144m^2$
  2. $.0154m^2$
  3. $.36m^2$
  4. $none$
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Perimeter = 2 * pi * r = 44 cm. r = 44 / (2 * 3.14) = 7 cm. Area = pi * r^2 = 3.14 * 49 = 153.86 cm^2. Converting to m^2: 153.86 / 10,000 = 0.015386 m^2, which is approximately 0.0154 m^2.