add 9cm to10cm and you come up with 19cm is ths correct?
8746765
30cm
3 4
55 square centimeters
9 cm x 9 cm x 12 cm is an isosceles triangle with base 12 and height = sqrt(81-36) cm = sqrt(45) cm So area = 1/2 * base * height = 1/2 * 12 * sqrt(45) = 40.25 cm2
The area of a 10cm circle is 314.16cm2 ( squared)
45 square cm
The area of a rectangle of sides 9cm and 10cm is:9cm x 10cm = 90cm2This is equivalent to 0.009m2
A=bxh
So?
1cm more because 9cm+1cm = 10cm
No because the 3 sides of an equilateral triangle are equal in length
Area = 0.5*base*height Note that the given dimensions would not form a triangle
Area 51.
18cm 2
27cm squared
so the area of the decorator table is 90 cm2 thanks i hope this answer helped you ^^
If the 3 sides are x, y and z then let s = (x+y+z)/2 Area = sqrt[s*(s-x)*(s-y)*(s-z)] sq cm.