Q&A - PSLE Math
-
:thankyou: tianzhu
Can u help to explain how to see Radius of semi-circle is 11.75 :scratchhead: for Q17
How about RGS 2011 Prelim Paper 2 Question 14b and 15.
You are great :udaman: -
Master Tian zhu
i managed to solve Q15 but not Q14b yet -
michyms:
Thank you tianzhu!
Hi
You’re welcome.
Best wishes -
michyms:
Hi
tianzhu, can you explain how you assigned the units? I'm a little confused. Thanks.
That reply was to address ozora’s query.It lacked details.
A similar type of question was discussed in an earlier post.
Please follow this link.
http://www.kiasuparents.com/kiasu/forum/viewtopic.php?f=69&t=280&start=2920
page 293@Wed Apr 13, 2011 9:07 am
Best wishes -
ck123:
HiMaster Tian zhu
i managed to solve Q15 but not Q14b yet
You’re welcome.
Paiseh, please do not address me as master, I am just an ordinary dad.
I am sorry, I don’t have a set of 2011 test papers as I am a post PSLE dad.
Please post the questions if you need clarification.
You may post images with the following steps.
[list]- 1) Do a print screen of the portion you want to upload.
[/list]Best wishes
2) Edit using Paint. Cut out the portion of the question you want to upload.
3) Save file in pictures
4) Go to Flickr (Free sign up as member) or other storage sites. Upload file. Select biggest/medium size. Right click to copy URL of image.
5) Coming back to Kiasuparents forum, click insert image button. - 1) Do a print screen of the portion you want to upload.
-
Hi ck123,
Just to share DD's working for RGS Q14b:
2.5 x 2 = 5
1.4 x 2 = 2.8
5 x 2.8 = 14
Answer: 14 cm2
Hope the above is useful. -
Hi Brenda 10
Thanks for the working. I got it.
Hi Tian zhu
I will try again with the picture upload.
Thanks all -
ck123:
Hi ck123,Hi Brenda 10
Thanks for the working. I got it.
You're welcome!
-
ck123:
Join the points OT and draw a vertical line from B to the horizontal line OD.:thankyou: tianzhu
Can u help to explain how to see Radius of semi-circle is 11.75 :scratchhead: for Q17
You can see that the 2 small right angled triangles are identical.
Therefore OT = BD = 11.75 cm
That is radius of the semicirlce = 11.75 -
Pls help to solve the following :-
Alan had some apples and oranges. There were 75 more apples than oranges. After he sold 4/5 of the apple & 3/4 of the oranges, he had 285 fruits left. How many apples did he have at 1st？
Hello! It looks like you're interested in this conversation, but you don't have an account yet.
Getting fed up of having to scroll through the same posts each visit? When you register for an account, you'll always come back to exactly where you were before, and choose to be notified of new replies (either via email, or push notification). You'll also be able to save bookmarks and upvote posts to show your appreciation to other community members.
With your input, this post could be even better 💗
Register Login