The slope of AC is -0.4
Proof:
In triangles ABC and DBE,
∠DBE is common to both triangles.
AB = 2DB (D is the midpoint of the interval AB)
Also, BC = 2BE (E is the midpoint of the interval BC)
Thus triangles ABC and DBE are similar in the ratio 2:1
Since, they are similar, ∠BDE must equal ∠BAC (corresponding angles in similar triangles)
If ∠BDE = ∠BAC, DE must be parallel to AC (corresponding angles are equal along parallel lines)
Thus, the slope of AC = the slope of DE
Thus, the slope of AC is -0.4
Its a prime number the factor of it are 1,2,4,19,38,76,152.
Answer:
(1) Parallelogram A parallelogram is a quadrilateral with two
sets of parallel sides. The opposite or facing sides of a
parallelogram are of equal length, and the opposite angles of a
(2) Square
A square is a regular quadrilateral. This means that is has four
equal sides and four equal angles.
(3) Rhombus A rhombus is a quadrilateral whose four sides all have the same
length. Opposite angles of a rhombus have equal measure. The two
diagonals of a rhombus are perpendicular.
(4) Rectangle
A rectangle normally refers to a quadrilateral with four right
angles.
Parallelogram
Step-by-step explanation:
Answer:
area of real bedroom = 32 cm²
hope it helps..
The length of side b is 7.61 m.
Here's how the length was calculated:
Let:
length of side a = 12 centimeters
B = 36 degrees
C = 75 degrees
In order to solve an AAS triangle, use the three angles, add to 180 degrees to find the other angle, then, use The Law of Sines to find each of the other two sides.
A = 180 - (36 + 75) = 69 degrees
by using the law of sines:
a / sin A = b / sin B = c/ sin C
we will substitute the given values:
12 / sin (69) = b / sin (36)
b = unknown
12 / 0.93 = b / 0.59
12.9 = b / 0.59
b = 12.9 * 0.59
b =7.61 cm (length of side b)
