powellmj9216
28.08.2019 •
Mathematics
If the smallest angle of a triangle is 20° and it is included between sides of 4 and 7, then (to the nearest tenth) the smallest side of the triangle is 3.2 3.5 2.3 2.6
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Ответ:
3.5
Step-by-step explanation:
We can use the cos rule to solve this type of problem. The cos rule is given by:
Where p is the side opposite of the "in-between" angle given and P is the angle given between 2 sides. Also, a and b are the 2 sides given (adjacent to the angle).
So, here, "p" is what we want to find (smallest side is opposite of smallest angle). And, a and b are 4 & 7 respectively. P is 20 degrees.
Now, using Cos Rule:
So, the smallest side, p, is 3.5
Ответ:
6 ft is more then 70 in.
Step-by-step explanation:
6 ft is more then 70 in. because 6ft is 72 in. therefore 6ft. is more then 70 in.
HOPE THIS HELPS