IDNStudy.com, kung saan ang iyong mga tanong ay natutugunan ng mga eksperto. Makakuha ng hakbang-hakbang na mga gabay para sa lahat ng iyong teknikal na tanong mula sa mga miyembro ng aming komunidad na may kaalaman.

How to compute for areas of objects like square, circle, rectangle and triangle?


Sagot :

Triangle - A= ½bh ... Multiply the base and the height then divide the answer to 2. 
Square A= s² or s × s
Rectangle = lw or Length/Long × Width/Wide
Circle = πr² or 3.14 (π) x r²

Ex. The radius of the coffee table that has circle in shape is 3dm. Find it's area.do:
3 × 3 = 9    9 × 3.14 = 28.26 So it means that 28.26 dm² is the area. 

More information:
Trapezoid=  (b1+b2) x h Just... add the 2 bases of the trapezoid. 
                             2  
Then multiply it to the height. Then divide it to 2.
Parallelogram= bh or base × height

NOTE: NEVER TO FORGET TO PUT SQUARE UNIT OR ² Example: 27cm²   30 cm²  BUT NEVER TO PUT SQUARE UNIT IF YOU LOOKED FOR PERIMETER.