Answer:
21.98
Step-by-step explanation:
7*3.16=21.98
Diagonals of a rect. are equal...
diagonals bisect each each other...
from these two properties we get ,
4x-12 = 1/2 (7x-18)
2 (4x-12)=7x-18
8x-24=7x-18
x=6
HOPE IT HELPS YOU '_'
Answer:
cm --- (a)
cm --- (c)
Step-by-step explanation:
Only (a) & (c) are clear enough to be solved. Others are not properly presented.
Use the following explanations of (a) & (c) to answer others.
Area is calculated as:
Substitute 100 for Area
Take π as 3.14. So, the expression become
Divide both sides by 3.14
Solve for r
But diameter = 2 * radius
So:
Area is calculated as:
Substitute 400 for Area
Divide both sides by 3.14
Solve for r
But diameter = 2 * radius
So: