Answer:
21cm
Step by step:
Scale : 9cm :12m
Therefore 1m = 9/12 cm
28m= 9/12 *28 = <u>21 cm</u>
Answer:
5.66 units
Step-by-step explanation:
A's per our discussion, x is a leg of right triangle.
Therefore, by Pythagoras theorem:


Answer:
The shaded region is
.
Step-by-step explanation:
The area of a circle is defined by the multiplication of the square of its radius, or half its diameter, by pi, or simply
.
15m is the radius of the large circle, and also the diameter of the smaller circles.
The area of the shaded region will be the subtraction of the area of the two smaller circles from the area of the larger circle.
As such:

49498683837. To work these questions out, use column addition, it is a quick and simple way to add large numbers.
Answer K= 20/x
Step-by-step explanation: