Question

How do we find area of a irregular shape with the help of a graph paper










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Answer 1

Answer:

Assemble Your Tools

Collect the area formulas for shapes you're already familiar with. The most common shapes and their formulas include:

Area of a square or rectangle = l × w (where l is length and w is width)

Area of a triangle = 1/2(b × h) (where b is the triangle's base and h is its vertical height)

Area of a parallelogram = b × h (where b is the parallelogram's base and h is its vertical height)

Area of a circle = π_r_2 (where r is the radius of the circle)

Subdivide the Irregular Shape

Use your imagination to subdivide the irregular shape you have into more familiar shapes.

Find the Dimensions of the Subdivided Shapes

Refer back to your area formulas for the dimensions you'll need to calculate the area of each subdivided shape. In this case, you'll need the base and vertical height of the triangle and the length and width (or two adjacent sides) of the rectangle.

Calculate the Area of Each Subdivided Shape

Fill the dimensions into the area formula for each subdivided shape. For example, if the triangle base of 6 inches and a vertical height of 3 inches, its area formula is:

1/2(b × h) = 1/2(6 in × 3 in) = 1/2(18 in2) = 9 in2

If the rectangle has a length of 6 inches (which is also the side that makes up the base of the triangle) and a height of 4 inches, its area formula is:

l × w = 6 in × 4 in = 24 in2

Explanation:

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Answer 2

Answer:

hope this is help ful

Explanation:

Aim = To measure the area of irregular shaped such as the leaf .

Material required = A leaf , a graph paper , pencil

Procedure = place the leaf on the graph paper and draw a boundary line of the leaf on the graph paper .

now count the number of complete square inside the boundary also count the squares which are half and more than half inside the boundary is not the number of square that are less than half .

Observation = The area of leaf = 1(number of complete squares) cm^2 + 1/2 (number of half or more than half squares ) cm^2 .

Inference = the area of irregular shape can be used measured using graph paper .

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