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primary 5 | Maths | Area & Volume
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June
June

primary 5 chevron_right Maths chevron_right Area & Volume chevron_right Singapore

Teachers, can you help me with this?

Date Posted: 2 years ago
Views: 491
sstrike
Sstrike
2 years ago
2u → 1 small rect
4u → shaded【1u+3u = 4u】
10u → fig.

(a)
shaded : fig
= 4 : 10
= 2 : 5 (Ans)

(b)
⁵⁄₂ × 270 = 675 cm² (Ans)

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PhysChemTutor
Physchemtutor's answer
1551 answers (A Helpful Person)
PhysChemTutor
PhysChemTutor
2 years ago
yes... this is for record.. have a good week end
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sstrike
Sstrike's answer
5318 answers (A Helpful Person)
1st
Try to find the proper base / height
June
June
2 years ago
Teacher, thank you. I get it now. But shouldn’t answer for a) be 2:3 since it asked area of shaded part to area of unshaded part. Area of shaded part is 4u while unshaded part is 6u. Total unshaded and shaded parts is 10u.
sstrike
Sstrike
2 years ago
u r right
June
June
2 years ago
Thank you for helping me in my math.
sstrike
Sstrike
2 years ago
U r v welcome