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Question
primary 6 | Maths
| Measurement
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Green Tea
Date Posted: 5 years ago
Views: 409
Height of △ ABC
= 2cm + 5cm + 3cm
= 10cm
Height of △BDE
= 5cm + 3cm
= 8cm
Area of △ABC = ½ x 10cm x 6cm
= 30cm²
Unshaded area of this △
= 30cm² - 8cm²
= 22cm²
Area of △BDE = ½ x 8cm x 8cm
= 32cm²
Unshaded area of this △
= 32cm² - 8cm²
= 24cm²
Total unshaded area
= 22cm² + 24cm²
= 46cm²
= 2cm + 5cm + 3cm
= 10cm
Height of △BDE
= 5cm + 3cm
= 8cm
Area of △ABC = ½ x 10cm x 6cm
= 30cm²
Unshaded area of this △
= 30cm² - 8cm²
= 22cm²
Area of △BDE = ½ x 8cm x 8cm
= 32cm²
Unshaded area of this △
= 32cm² - 8cm²
= 24cm²
Total unshaded area
= 22cm² + 24cm²
= 46cm²
triangle ABC = 0.5 x 6 x 10 = 30 cm ²
triangle BDE = 0.5 x 8 x 8 = 32 cm ²
unshaded area
= 30+32-8-8
= 46 cm ²
ans: (1)
...
triangle BDE = 0.5 x 8 x 8 = 32 cm ²
unshaded area
= 30+32-8-8
= 46 cm ²
ans: (1)
...
See 1 Answer
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Hope this helps
Date Posted:
5 years ago
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