Q&A - PSLE Math

[Yerdua]

Pls help with this 5marks qn. Thanks!

[sushi88]

Yerdua...please repost question...cannot read the whole question.

[Ender]

Pls help with this 5marks qn. Thanks!

Find the areas of the square, quadrant and semicircle first.

Square - quadrant + semicircle = 2x +(w+y) ...... Note (w+y) = 2x
Square - quadrant + semicircle = 4x
Area of x = 4x/4

The method used is to mapped the region w, x , y and z with the above areas
When you add the area of square, region w, x, y, and z is marked with 1.
Minus the area of quadrant. y and z becomes 0. While w and x remain as 1.
Add the semicircle, y becomes 1 and x becomes 2.
Final result is z is 0, w and y are 1 count each and x is 2 counts. I.e 2x + (w+y).

[ozora]

Need some help in geometry thanks

[Nebbermind]

Need some help in geometry thanks

SBA = ABE = (180 - 108)/2 = 36

BAE = 180 - (36 + 79)

CSA = AEB = 79

TSC = 90 - 79 = 11

SCT = BCD = 90 - 11 = 79

[ozora]

Need some help in geometry thanks

SBA = ABE = (180 - 108)/2 = 36

BAE = 180 - (36 + 79)

CSA = AEB = 79

TSC = 90 - 79 = 11

SCT = BCD = 90 - 11 = 79

Thank u

[Jerico]

Hi, Can Someone please help ? Thank you in advance !

[Jerico]

Hi, Can someone please help ? Thank you in advance !

[Jerico]

Hi, Can someone please help ? Thank you in advance !

[Jerico]

Hi, Can someone please help ? Thank you in advance !