Options:
A.
B.
C.
D.
Sign in to view the correct answer and detailed explanation.
Study with fewer interruptions on Android
Use Ulearngo on a verified device for smoother past-question study.
Ulearngo is an independent study app. It is not affiliated with, endorsed by, or representing Joint Admissions and Matriculation Board (JAMB). Always confirm official exam, admission, registration, syllabus, timetable, and result information from JAMB official website.
Earlier discussion
9 older comments kept for context.
Anavhe Deborah
9x8=72
Emmanuel Nwade
Please how is 9×8 =63 instead of 72?
Abdulquadri
\( \left ( a \right )\left ( a \right ) \)
Olugbola Samuel
Pls how did we come abut the 9×8
Oluwaseun Adeyemi
Area of the rectangular picture = L x B = 8 x 6
= 48 sq.cm. Area of the whole surface is 9 x 8 = 63 sq. cm
Area of the frame is 63 – 48
= 15 sq. cm
Nancy Paul
Find the dimensions of the outer rectangle (picture + frame). The width of the frame is 1/2 cm on each side, so the dimensions of the outer rectangle will increase by 1 cm in both width and height. New width =6cm + 1cm = 7cm 6cm+1cm=7cm New height =8cm+1cm=9cm 8cm+1cm=9cm Find the area of the outer rectangle. Area of outer rectangle=7cm×9cm=63cm² Area of outer rectangle=7cm×9cm=63cm² Find the area of the picture. Area of the picture=6cm×8cm=48cm² Area of the picture=6cm×8cm=48cm² Find the area of the frame. Area of the frame=Area of outer rectangle−Area of picture=63cm²−48cm²=15cm² The area of the frame is 15 cm².
Nancy Paul
Where did u get 9 from
Erioluwa Olamide
Pls how is 9 x 8 = 63 not 72?
George
How did you get area of a whole surface