2,25 meters = 225 cm
1,8 meters = 180 cm
225 cm x 180 cm = 40500 cm
38
1472.50/ 5 weeks = 294.50/ week
294.50/7.75 per hour = 38 hours per week
8/10 = 80/100
So the sum is 80/100 + 8/100 = 88/100 or 22/25
Given that,
∠C = (6x-21)° and ∠A = (4x+11)°
To find,
Choose the correct option.
Solution,
For a parallelogram, the opposite angles are equal. ATQ,
(6x-21)° = (4x+11)°
Taking like terms together,
6x-4x = 21 + 11
2x = 32
x = 16
∠C = (6x-21)° = 6(16) -21 = 75°
So, ∠A = 75°
So, ∠A = ∠C = 75°. Hence, the correct option is (B).
I’m pretty sure the answer is b :)