24.5 cm2 - Simply multiply the two known values together !
63
24.5 cm sq
you times the length by the width, say if a square was 7cm in length and 5cm in width, the area would be 35cm.
The area for a 7cm by 8cm is 56.
Two sides of a triangle are not sufficient to determine its area.
The width is 10.5 cm.
5cm * 7cm = 35cm sq.
The perimeter is the addition of the all the sides of the shape. For example if a rectangle has two sides which are 4cm and two sides which are 7cm, then the perimeter will be 4cm+4cm+7cm+7cm. The perimeter would therefore be 22cm. The area of a shape is gotten by multiplying the length and breadth of the shape. For example, in a rectangle witrh the same measurements above, the area will be 4cm x 7cm and that would 28cm. You have to use the square sign but I can't do that here.
20cm
The area of a rectangle is calculated by multiplying the length by the width. 7cm x 3.5cm = 24.5 cm2 - cm2 = centimeters squared
35 cm
7cm x 9cm= 63 sq.cms
24.5 cm sq
63
The area of a hexagon with 7cm sides is approximately 127.31cm2
Area 51.
you times the length by the width, say if a square was 7cm in length and 5cm in width, the area would be 35cm.