A rectangle has length xcm and width (x - 1)cm. If the perimeter is 16cm. Find t...
Question
A rectangle has length xcm and width (x - 1)cm. If the perimeter is 16cm. Find the value of xOptions
A) 3\(\frac{1}{2}\)cm
B) 4cm
C) 4\(\frac{1}{2}\)cm
D) 5cm
The correct answer is C.
Explanation:
l = x; b = x - 1
perimeter = 2(l + b) = 16
l + b = \(\frac{16}{2}\) = 8
l + b = 8
x + x - 1 = 8
2x = 8 + 1
2x = 9
x = \(\frac{9}{2}\)cm
x = 4\(\frac{1}{2}\)
More Past Questions:
Dicussion (1)
Other Subjects
- English Language
- Biology
- Government
- Physics
- Chemistry
- Economics
- Christian Religious Knowledge
- Commerce
- Geography
- Literature In English
- Accounts
- Agricultural Science
- General Paper
- Islamic Religious Knowledge
- History
- Further Mathematics
- Current Affairs
- Civic Education
- Computer Studies
- Yoruba
- Hausa
- Igbo
- French
- Home Economics
- Sweet Sixteen
- Fine Arts
l = x; b = x - 1
perimeter = 2(l + b) = 16
l + b = \(\frac{16}{2}\) = 8
l + b = 8
x + x - 1 = 8
2x = 8 + 1
2x = 9
x = \(\frac{9}{2}\)cm
x = 4\(\frac{1}{2}\)