Answer: A)Area=1/2bh, 1/2x12x9=1/2x108,108/2=54cm2.
B)If the base doubles the original Area doubles.
C)If both the Height and the base is doubled then the Area will Quadruple.
Step-by-step explanation:
Answer with explanation:
Given: A kite U V W X
To Prove: Diagonals of kite U V W X, that is ,U W and V X are Perpendicular.
Proof:
Slope between two points having position vector or coordinates ,
is given by:

Step 1:
Determine the slope of XV.
Suppose position vector of point X is (a,b) and Position vector of point V is (p,q).
The slope of XV is

Step 2:
Determine the slope of UW.
Suppose position vector of point U is (m,n) and Position vector of point W is (s,t).
The slope of U W is :

Step 3: The slopes of the diagonals are,
Also, 
→→Showing that,The diagonals of kite UVWX are perpendicular to each other.
I believe it is D. The lowest number on the y-axis is -4, and the highest is 0. -4<=y<=0
Answer:
15.8 (15/8)
Step-by-step explanation:
First, we turn the mixed numbers into fractions by multiplying the whole number by the denominator and this answer into the numerator:
2 1/2=5/2
1 1/3=4/3
now to divide, we keep the first fraction, change the divide to a multiply, and then flip the second fraction:
5/2·3/4
Now, simply multiply:
5/2·3/4=15/8 (15.8 if you need a decimal)
And you have your answer! hope this helped!
Answer:
42mm
Step-by-step explanation:
For the perimeter of a shape you would add all the sides together. So in this case it would be:
7mm+7mm+7mm+7mm+7mm+7mm=42mm