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primary 6 | Maths
| Measurement
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Help me with this pls
Date Posted: 5 years ago
Views: 339
You can combine one small curved shaded area with the small shaded quadrant to get a small shaded square.
The other small curved shaded area can be combined with the big curved shaded area to get a larger shaded area. You can find this area by subtracting the big quadrant from the large square.
Small shaded square has half the length of the big square. So it's area = 10cm x 10cm = 100cm²
The larger shaded area = 20cm x 20cm - ¼ x 3.14 x 20cm x 20cm
= 400cm² - 314cm²
= 86cm²
Total shaded area = 86cm² + 100cm² = 186cm²
The other small curved shaded area can be combined with the big curved shaded area to get a larger shaded area. You can find this area by subtracting the big quadrant from the large square.
Small shaded square has half the length of the big square. So it's area = 10cm x 10cm = 100cm²
The larger shaded area = 20cm x 20cm - ¼ x 3.14 x 20cm x 20cm
= 400cm² - 314cm²
= 86cm²
Total shaded area = 86cm² + 100cm² = 186cm²
Thank you
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Date Posted:
5 years ago
Thank you for helping me
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