Perimeter of a rectangle = 2 x length + 2 x width.
52 = 2l + 2 x 12 = 2l + 24 (Where l is the length)
2l = 52 - 24 = 28
length = 28/2 = 14 cm
area = length x width area = 12 x 10 = 120 square cm
Answerfirst you have to make it a square by subtracting 2cms from the length and adding 2cms to the width. That will make it equal to 12cm. The area for the rectangle was 140cm then it increased by 4 because 12cm * 12cm is 144cm. so x = 2 and the area increases by four.
A rectangle or perhaps a parallelogram
length 14cm, width 2cm This is worked out by finding the following equations: perimeter = 16 x width length = width + 12 Then working out 16 x width = 2 x (width + 12) + 2 x width -> 14 x width = 2 x (width + 12) -> 14 x width = 2 x width + 24 -> 12 x width = 24 -> width = 2cm Since lendth = width + 12, length = 14cm
the formula for the area of a rectangle is base*width. plug in 2 for the base and 6 for the width. 2*6=12 the answer is 12cm
The area of rectangle is : 72.0
12cm
area = length x width area = 12 x 10 = 120 square cm
36 cm2 Area of a rectangle is length times width, so you would multipy 12cm by 3 cm to get 36 sq. (squared) cm.
15 cm Solved through Pythagoras' theorem.
12cm x 12cm
Area = 108cm2 Width = 12cm Length = 9cm
12cm is not uncommon.
the equation for area is area = length * width. area = 3cm*4cm. Area = 12cm^2
Answerfirst you have to make it a square by subtracting 2cms from the length and adding 2cms to the width. That will make it equal to 12cm. The area for the rectangle was 140cm then it increased by 4 because 12cm * 12cm is 144cm. so x = 2 and the area increases by four.
A rectangle or perhaps a parallelogram
length 14cm, width 2cm This is worked out by finding the following equations: perimeter = 16 x width length = width + 12 Then working out 16 x width = 2 x (width + 12) + 2 x width -> 14 x width = 2 x (width + 12) -> 14 x width = 2 x width + 24 -> 12 x width = 24 -> width = 2cm Since lendth = width + 12, length = 14cm