Answer:
length of diagonals are BD = 33.039 cm and AC = 38.84 cm
Step-by-step explanation:
given,
sides of parallelogram is 20 cm and 30 cm
Angle between them is 80°. opposite angle of parallelogram are same the opposite angle is same.
other angle = 360° - 80° - 80° + 2 x = 200
x = 100°
Using cosine law
c² = a² + b² - 2ab cos γ
In ΔDAB
BD² = 30² + 20 ² - 2 × 30 × 20 cos 80°
BD = 33.039 cm
now in ΔADC
c² = a² + b² - 2ab cos γ
AC² = 20² + 30² - 2 × 30 × 20 cos 100°
AC = 38.84 cm
length of diagonals are BD = 33.039 cm and AC = 38.84 cm
Answer: 7 square units
Step-by-step explanation:
<!> Brainliest is appreciated! <!>
9514 1404 393
Answer:
A. yes
Step-by-step explanation:
The diagonals of a rectangle are congruent and bisect each other.
The diagonals of a parallelogram bisect each other. If they are also congruent, then the parallelogram is a rectangle.
Answer:
- She still has $15000 in the account after she graduates
Step-by-step explanation:
Let the number of semesters is s and the balance id b(s)
<u>The balance after s semesters can be expressed as:</u>
<u>After 10 semesters Isla has:</u>
- b(10) = 100000 - 8500*10 = 15000
1-2p+5=4p+6
6-2p=4p+6
6=6p+6
0=6p
0=p
