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3 years ago

Two last help with math please and thanks!

Mathematics

2 answers:

12345 [234]3 years ago

5 0

1st problem:
Use the Pythagorean theorem:
a^2+b^2=c^2
49+361=c^2
c^2=410
c=20.24
The answer is 20m

2nd problem:
First calculate the height using the Pythagorean theorem:
a^2+b^2=c^2
20^2+b^2=625 (i got 20 {radius} by half-ing the base edge length)
400+b^2=625
b^2=225
b=15

Next, solve for the volume:
V=a^2*h/3
V=40^2*15/3
V=1600*5
V=8000

The answer is the second choice or B.

sleet_krkn [62]3 years ago

4 0

20m

a^2+b^2=c^2
7^2=49
19^2=361
361+49=410
Root410= 20.248
~20

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