P/8=14/3
P=14*8/3
P=37.3333
Its A.
because if the base is 13 and 13 and the sides are 10 cm multiply and get A.
Answer:
I think it’s C I’m not sure I seen a question like this before
Step-by-step explanation:
Answer:
Not C, Not A, most likely B
Step-by-step explanation:
Its less than 90 because its and acute, meaning its smaller, so you can already knock off C.
Answer: 
Step-by-step explanation:
Given
Two forces of 9 and 13 lbs acts
angle to each other
The resultant of the two forces is given by

Insert the values

Resultant makes an angle of

So, the resultant makes an angle of
with 9 lb force
Angle made with 13 lb force is 