a) Rectangles always have 4 right angles (90 degrees), but parallelograms do not always have 4 right angles rather they can, but do not have to. Rectangles have to.
b) A square is a type of rectangle, but a rectangle is not a type of square. Both rectangles & squares have 4 right angles and are always quadrilaterals, but squares always have all sides that have the same length, but rectangles do not have to have their sides all equivalent lengths.
c) In the case of a parallelogram, the opposite sides are equal whereas in a rhombus all four sides are equal.
Make the length x+4 and the width x and then make a formula x(x+4)=21
then u ll get x^2+4x-21=0 and then solve for x ..... the width is 3
Answer:
Option A
Step-by-step explanation:
If the speed of a car in miles per hour (m) is proportional to the speed in kilometers per hour (k),
m ∝ k
m = ck
Here, c = Proportionality constant
Therefore, c = 
should be constant for each value given in the table.
For m = 11 and k = 17.699,
c = 
c = 0.6215
For m = 26 and k = 41.834,
c = 
c = 0.6215
For m = 34 and k = 54.706,
c = 
c = 0.6215
Therefore, c is constant for each value of m and k.
Option A will be the correct option.
Answer:
Step-by-step explanation:
Given
To find
- Coordinates of intersection of lines
As per the graph the intersection point has coordinates:
The point is (-3, -2)
Answer:
Step-by-step explanation:
A = πr²
Dividing by π
A/π = r²
Finding the square root of both side
√r² = √(A/π)
r = √(A/π)
