alleryStart learning →A rectangle is 10 cm by 8 cm. Both its length and width are halved. What is the new area?
A40 sq cm
B20 sq cm
C10 sq cm
D45 sq cm
Answer & Solution
Correct answer: B. 20 sq cm
The new sides are 5 cm and 4 cm, so the area is 5 x 4 = 20 sq cm, one quarter of 80.
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