Use decomposition to find the area of the figure 3cm,5m,7cm, the area is ….
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1/2 × (3+7) × 5 = 5×5= 25cm² pls mark brainliest and like
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Area of the trapezium is 25 cm²
Given:
The dimensions of the trapezium are
The length of the sides are 3 cm and 7 cm
The height of the trapezium is 5 cm
To find:
The area of the figure
Solution:
Formula used:
Area of the trapezium A = 1/2(a+b)h
where a and b are sides and h is the height of the trapezium
From the data,
=> a = 3 cm
=> b = 7 cm
=> h = 5 cm
Area of the figure, A = 1/2 [ 3 + 7 ] 5
= 1/2 [ 10 ] 5 = 5 × 5 = 25 cm²
Hence,
Area of the trapezium is 25 cm²
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