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secondary 2 | Maths
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secondary 2 chevron_right Maths chevron_right Singapore

Need part (c) and (d) only

Date Posted: 1 week ago
Views: 18
snell
Snell
1 week ago
r = 12
.
.
.

.
.
.
225 deg
.
.
.
90π
Seriously Help Me
Seriously Help Me
1 week ago
Your (c) and (d) isn’t correct

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DAI BIN
Dai Bin's answer
66 answers (Tutor Details)
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Seriously Help Me
Seriously Help Me
1 week ago
Your (c) is not right
Arnold K H Tan
Arnold K H Tan
6 days ago
All answers are correct except part c
(a) 12 cm
(b) 9 (pi) cm
(c) 0.75 (pi) radians (135⁰)
(d) 54 (pi) cm²
Note that an obtuse angle is between 90⁰ and 180⁰, which is for minor arc OAB. 180⁰ = pi radians