Answer:
Area of ABCD = 959.93 units²
Step-by-step explanation:
a). By applying Sine rule in the ΔABD,


Sin∠DBA = 
m∠DBA = 
m∠DBA = 45.64°
Therefore, m∠ADB = 180° - (110° + 45.64°) = 24.36°
m∠ADB = 24.36°
c). Area of ABCD = Area of ΔABD + Area of ΔBCD
Area of ΔABD = AD×BD×Sin(
)
= 35×46Sin(12.18)
= 339.68 units²
Area of ΔBCD = BD×BC×Sin(
)°
= 46×27×(0.4994)
= 620.25 units²
Area of ABCD = 339.68 + 620.25
= 959.93 units²
Answer:
postive 12
Step-by-step explanation:
16-4=12
Answer:
-14
Step-by-step explanation:
Follow PEMDAS, then the left -> right rule.
PEMDAS =
Parenthesis
Exponent (& roots)
Multiplication
Division
Addition
Subtraction
First, multiply 6 with -2:
6 x -2 = -12
Next, add 1, then subtract 3.
-12 + 1 = -11
-11 - 3 = -14
-14 is your answer.
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