A rectangular picture 6cm by 8cm is enclosed by a frame \(\frac{1}{2}\)cm wide. Calculate the...

A rectangular picture 6cm by 8cm is enclosed by a frame \(\frac{1}{2}\)cm wide. Calculate the area of the frame

  • A. 15sq.cm
  • B. 20sq.cm
  • C. 13sq.cm
  • D. 16sq.cm
  • E. 17sq.cm
Correct Answer: Option A
Explanation

Area of the rectangular picture = L x B = 8 x 6

= 48 sq.cm.

Area of the whole surface (which is gotten by adding \(\frac{1}{2}\) on every side to the original picture size) is 9 x 7 = 63 sq. cm

area of the frame is 63 - 48

= 15 sq. cm


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Contributions (11)

smart peniel
4 months ago
cross multiply both sides with 1/2cm and then multiply your anwser with the 1/2cm馃槖
olami
2 years ago
can someone please explain better to me . I dont under how it became 9 & 8 instead of 13/2 & 17/2馃馃馃馃
Okike
1 year ago
There is error in the explanation of this question.
Please how did u got the 9&8

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