Answers

2015-02-14T14:51:55+08:00

This Is a Certified Answer

×
Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
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.
1 5 1