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secondary 4 | E Maths
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Can anyone help me with this question please? Thank you!
Date Posted: 5 years ago
Views: 298
Are you able to view my answer? It seems like there is an error with the picture.
No i cant.:(
Ok. Nvm i will explain my answer here.
First observe that, ABE and DEF are similar triangles. DF/AB=DE/BE=6/18=1/3
Then find the length of DE=1/4DB.
Then area of DEF=DExDFsin45/2=13.5
Area of BCD=162
Minus of and you will get your ans of 148.5. If you figure it out, help me upvote thanks!
First observe that, ABE and DEF are similar triangles. DF/AB=DE/BE=6/18=1/3
Then find the length of DE=1/4DB.
Then area of DEF=DExDFsin45/2=13.5
Area of BCD=162
Minus of and you will get your ans of 148.5. If you figure it out, help me upvote thanks!
Thank you!
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Use similar triangle property, you should be able to figure it out.
Date Posted:
5 years ago
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Answer.
Date Posted:
5 years ago
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