Answer:
1st question: 30
2nd question:78
Explanation:
use the formula
]
Where A is the area, a and b are the two given lengths and y is the given angle.
So,
a=9
b=7
y=73
Plugging those values in, we get:
For the 2nd question, we use the same formula, only this time
a=13
b=14
y=59
so,