a) 34 cm
b) 21 cm
c) 14 cm
d) 17 cm
2006-12-02 02:19:28 · 7 answers · asked by cave_21man 1 in Science & Mathematics ➔ Mathematics
Perimeter=(12*2+5*2=24+10)cm=34cm
Therefore the ans. is a.
2006-12-02 02:26:54 · answer #1 · answered by Adithya M 2 · 2⤊ 0⤋
The perimeter of a rectangle is the addition of all the sides.
Since a rectangle has two lengths and two widths, the formula would be
L + L + W + W = 12 + 12 + 5 + 5 = 34
2006-12-02 02:25:42 · answer #2 · answered by Puggy 7 · 2⤊ 0⤋
Perimeter = 2l + 2w = 24 + 10 = 34 cm
2006-12-02 02:26:01 · answer #3 · answered by Mayur 2 · 2⤊ 0⤋
Here's the formula:
P=2l+2w
P=2(12)+2(5)
P=24+10=34 cm.
the answer is a) 34 cm.
2006-12-02 04:01:31 · answer #4 · answered by Anonymous · 1⤊ 0⤋
P = L2 + W2
P = 12 ( 2 ) + 5 ( 2 )
P = 24 + 10
P = 34
the answer would be a) 34 cm
hope that hepled!
2006-12-02 03:12:33 · answer #5 · answered by Angels Eyes 2 · 2⤊ 0⤋
well, in this case we are given both the length and width of the rectangle. opposite sides of a rectangle are congruent according to a geometric property. so the equation for the perimeter of a rectangle becomes
l+l+w+w= 2l+2w
plug in your given values.
2(12)+2(5)=p
24+10=p
34=p
the answer is a)34cm
2006-12-02 02:33:54 · answer #6 · answered by Carpe Diem (Seize The Day) 6 · 2⤊ 0⤋
a. 34 cm
perimeter = l+l+w+w
2006-12-02 02:28:00 · answer #7 · answered by rick b 2 · 2⤊ 0⤋