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Question
primary 6 | Maths
| Measurement
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Pls help
Date Posted: 4 years ago
Views: 245
Area of circle
= πr²
= 22/7 x 7cm x 7cm
= 22cm x 7cm
= 154cm²
The two shapes share the same unshaded part.
Area of circle = area of the unshaded part + area of its 4 shaded sections
Area of square = area of the unshaded part + area of its 4 shaded corners
Since all the shaded parts have equal areas,
Area of 1 shaded corner = area of 1 shaded section
So Area of 4 shaded corners = area of 4 shaded sections
This means :
Area of circle
= area of the unshaded part + area of its 4 shaded sections
= area of the unshaded part + area of the 4 shaded corners
= Area of square
So area of square = 154cm²
= πr²
= 22/7 x 7cm x 7cm
= 22cm x 7cm
= 154cm²
The two shapes share the same unshaded part.
Area of circle = area of the unshaded part + area of its 4 shaded sections
Area of square = area of the unshaded part + area of its 4 shaded corners
Since all the shaded parts have equal areas,
Area of 1 shaded corner = area of 1 shaded section
So Area of 4 shaded corners = area of 4 shaded sections
This means :
Area of circle
= area of the unshaded part + area of its 4 shaded sections
= area of the unshaded part + area of the 4 shaded corners
= Area of square
So area of square = 154cm²
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154cm²
Date Posted:
4 years ago
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