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You can read posting Sarin learns Perimeter, Area and Volume in school (Math Concept) to learn the concept of area.
Read also the posting on Sarin learns Shapes and Solids in school (Math Concept) to know about shapes.
Read the posting on Sarin learns the concept of Fraction (mathematics concept) to understand the concept of Fraction.
Challenge yourself with the question before look out for the given solution‼!
Upper primary school mathematics question UPQ545
The figure below is made up of a right-angle triangle and a rhombus overlapping each other. 2/9 of the triangle and ½ of the rhombus are not overlapped.
The base and height of the triangle are 18cm and 28 cm respectively.
What is the area of the rhombus?
2/9 of triangle not overlapped ==> 7/9 of the triangle is overlapped
½ of the rhombus overlapped ==> ½ of the rhombus is overlapped
The overlapped area (yellow region) are equal size(area),
1 part of the rhombus equal to 7 parts of the triangle
½ = 7/14 of rhombus ==> 7/9 of the triangle
The area of the triangle = ½ × 18 × 28 = 252 cm2
9 units = 252
1 unit = 28 cm2
The area of the rhombus = 14 × 28 = 392 cm2