The width of a computer monitor is 30 cm. If the perimeter is 144 cm, what is the area of the computer monitor?

p er im e t er = 144 c m w i d t h : w = 30 c m l e n g t h : l = ? P er im e t er = 2 w + 2 l 144 = 2 ⋅ 30 + 2 l 144 = 60 + 2 l
2 l = 144 − 60 2 l = 84 / : 2 l = 42 c m A re a = l ⋅ w A = 42 ∗ 30 = 1260 c m 2 A n s w er : a re a o f t h e co m p u t er m o ni t or : 1260 c m 2

Answered by Lilith | 2024-06-10

The area of the computer monitor, with a width of 30 cm and a perimeter of 144 cm, is calculated to be 1260 cm². This is found by first determining the length of the monitor and then applying the area formula. The calculations involve using the perimeter formula followed by solving for area using length and width.
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Answered by Lilith | 2024-12-24