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primary 6 | Maths
| Measurement
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10q
Date Posted: 3 years ago
Views: 538
assumed QR = PQ = 28cm
unshaded
= 0.5×28×(20-8) = 168
shaded
= 0.5×28² - unshaded
= 0.5×28² -168
= 224cm² (Ans)
unshaded
= 0.5×28×(20-8) = 168
shaded
= 0.5×28² - unshaded
= 0.5×28² -168
= 224cm² (Ans)
28:20:8
=7:5:2
shaded
= (7-5+2) × ½ ×28²÷7
= 224cm² (Ans)
=7:5:2
shaded
= (7-5+2) × ½ ×28²÷7
= 224cm² (Ans)
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