Answer:
its answer will be 9.first by using phythagorus theorem h^2=p^2+b^2'then h=15,p=12and b=x. again by putting the values of h ,p and b we get ,(15)^2=(12)^2+x^2. 225=144+x^2, x^2=225-144, x^2=81,x=√81,x=9 answer
Answer:
im not sure about the 1st one but sec one is 162 i think and im i dont know the last eaither srry
Step-by-step explanation:
Answer:
37.68
Step-by-step explanation:
formula is pi times radius^2 times height
pi times 2^2 = 12.56
12.56 times height (3)= 37.68
hope it helped
have a good day
~MADI~
Answer:
arc = 7 pi
Step-by-step explanation:
The length of the arc is circumference
C = 2 * pi *r
C = 2 * pi *4
C = 8 pi
A circle is 360 degrees. The arc is 315 degrees
The arc is 315/360 of the circle, that is 7/8 of the circle, so it will be 7/8 of the circumference
7/8C = 7/8 (8pi)
arc = 7 pi