Answer:
15 degrees
Step-by-step explanation:
Since ABD is a right angle it equals 90 degrees
ABC is 75 degrees
ABC + CBD = ABD
75 + CDB = 90
Subtract 75 from each side
75-75 + CDB = 90-75
CDB = 15
The other angle is 15 degrees
15°
Angle ABD is a right angle.
The two angles should add up to 90
x + 75 = 90
x = 15
103,000
Use your knowledge of decimal arithmetic. Or, use a calculator.
100,000(1 +.03) = 100,000·1.03 = 1000·103 = 103,000
125.6
all you have to do is multiple the 3.14 with 40 cm to get 125.6 cm