Acute angle bc its the smallest angle
When calculating A×B, the number of columns of A = number of rows of B.
Thus, only last case is possible.
Answer:
The answer is 155.
Step-by-step explanation:
We can find the remaining parts of the triangle angles.
F(-5) just means that your substituting the number -5 for every x value. So if you have x+1 this would be -5+1 which is -4
Answer:
201.1 km²
Step-by-step explanation:
Surface area of the figure,
4πr²
= 4×π×4²
= 64π
= 201.1 km² (rounded to the nearest tenth)
