Whenever you multiply something, you just add it to itself that many times.
ex) 7 × 4 = 7 + 7 + 7 + 7.
Thus n × a = n + n + n + n....a times.
Answer:
5) 6r-1+6r=11
Step-by-step explanation:
if you add everything up you get that
X= 55 degrees ...........
Answer: they do not have enough info but I will try my best to answer if im wrong its not my fault so please add more info
Solution
2. I know that for a Semi-Circle Area = 320 . From this find out Area of the Semi-Circle.
Solution:
Here Area=320(Given)
Area=
πr2
2
r2=
Area⋅2
π
r2=
320⋅2
22
7
r=14.2701
Diameter(d)=2r
=2⋅14.2701
=28.5402
Circumference=πr
=
22
7
⋅14.2701
=44.849
Perimeter=πr+2r
=
22
7
⋅14.2701+2⋅14.2701
=44.849+28.5402
=89.6979
Step-by-step explanation:
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