Jackson Wan's answer to jayden's Primary 5 Maths Decimals Singapore question.
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Hi Jayden,
looking at the square area,
100cm^2 = 10cm*10cm
therefore, AD=10cm.
similarly, DC=10cm
EF= 25cm-10cm =15cm
Area of triangle=1/2*base*height and
Sum of areas of the two triangles
= 1/2*ED*AD + 1/2*DC*EF
looking at the square area,
100cm^2 = 10cm*10cm
therefore, AD=10cm.
similarly, DC=10cm
EF= 25cm-10cm =15cm
Area of triangle=1/2*base*height and
Sum of areas of the two triangles
= 1/2*ED*AD + 1/2*DC*EF
Date Posted:
2 years ago
Ty! :)
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