Q&A - P4 Math
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Oh! Tianzhu Thks!! You make it looks so easy!!
I have one more q on perimeter, no dimensions given. Need to post pic. -
Can anyone help with the following question?
http://i40.tinypic.com/333z4v4.jpg\">
Thanks in advance. -
milo-cupcake:
concepts involved:Can anyone help with the following question?
http://i40.tinypic.com/333z4v4.jpg\">
Thanks in advance.
1) total quantity remains unchanged
2) work backwards
method 1:
http://i44.tinypic.com/35koqi8.jpg\">
method 2:
http://i39.tinypic.com/fn45q8.jpg\">
method 2 is for explanation purposes (since if it is a p4 qn, not allowed to use ratio) -
The Right Equation:
concepts involved:milo-cupcake:
Can anyone help with the following question?
http://i40.tinypic.com/333z4v4.jpg\">
Thanks in advance.
1) total quantity remains unchanged
2) work backwards
method 1:
http://i44.tinypic.com/35koqi8.jpg\">
method 2:
http://i39.tinypic.com/fn45q8.jpg\">
method 2 is for explanation purposes (since if it is a p4 qn, not allowed to use ratio)
:thankyou: The Right Equation -
pls help me with this.
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http://i39.tinypic.com/f0805.jpg\">
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peapot:
http://i39.tinypic.com/f0805.jpg\">
is the ans 36cm & 16cm sq? -
I don’t know. It’s school homework which she needs to submit on Monday. I don’t have the answer. Pls advise.
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Hi everyone,could help me :
1) A pendulums swings to and fro in 1 seconds. It makes angle of 53 degrees. How many degrees does the pendulum swing in 5 seconds.
thank you in advance for the input :? -
I try.
PS is 1/6 of PQRS which is the perimeter. So perimeter will be 6/6
PS = QR = 1/6
So PQ = SR = 2/6
PQ - PS = 2/6 - 1/6 = 1/6 = 6cm
So PQRS is 6x6cm = 36 cm
PS = 6cm, PQ = 12 cm
Area of rectangle is 6x12 = 72cm sq
Shaded area = 56cm sq
so unshaded area = 72 - 56 = 16cm sq