Question
P4.AP.NK.23050843-A1
The area of a rectangular sheet of paper BCDE is 56 cm2. It is then folded at a corner as shown below in Figure 2. Given that BE = 7 cm and BF = 3 cm.
  1. Find the length of DE.
  2. Find the perimeter of the unshaded part BFCDE.
3 m
(a)
∑

Click ∑ button first when a symbol is required. X

(b)
∑

Click ∑ button first when a symbol is required. X

Symbols

Enter the numerator and denominator


Enter value


2
Question Solution

1-minute grace period



When you click the Next button, you will be given 1-minute grace period to decide whether to do the next question type.

The question will be marked as incorrect if you exceed 1 minute and leave the question page.

Click the Back button instead if you would like to return to the topic page.

STUDENT

Primary 4 AREA PERIMETER P4.AP.NK.23050843

01 Jul 2024, 11:13 PM

The area of a rectangular sheet of paper BCDE is 56 cm2. It is then folded at a corner as shown below in Figure 2. Given that BE = 7 cm and BF = 3 cm.
  1. Find the length of DE.
  2. Find the perimeter of the unshaded part BFCDE.
Navigations
Contact Us
Members
Links