Low Yi Yin's answer to gly's Secondary 3 E Maths Singapore question.
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1) Find length for all sides
2) Apply cosine rule
Hope this helps ;))
2) Apply cosine rule
Hope this helps ;))
Date Posted:
1 year ago
hi ! how about b(ii) ? how do i prove it??
b(ii)
1) Find Area of sector by
(1/2)(5)^2(0.927) = 11.5875...
2) Find Area of triangle PAR using
1/2 x PA x AR x sin (0.927) = 9.997788...
3) Area between = 11.5875-9.997788 =1.59units^2 (3sf) (shown)
1) Find Area of sector by
(1/2)(5)^2(0.927) = 11.5875...
2) Find Area of triangle PAR using
1/2 x PA x AR x sin (0.927) = 9.997788...
3) Area between = 11.5875-9.997788 =1.59units^2 (3sf) (shown)
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