2 years ago

Need answer FAST!: What is the area of the triangle given the graph?

Mathematics

2 answers:

Igoryamba2 years ago

8 0

Answer:

1/2×b×h

1/2×7×4 =area

a=14

give brainlist

steposvetlana [31]2 years ago

3 0

Answer:

A=(l*w)/2

a=7*4/2

A=28/2=14

the answer is 14 I think

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Hal says the volume of the sphere shown below 36 cm3. Find the correct volume, using 3.14 for pi. Round to the nearest hundredth

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Answer:

Volume of sphere is $35.98cm^3$

Step-by-step explanation:

It is given that Hal says that volume of sphere is $36cm^3$

Volume of sphere is given by $V=\frac{4}{3}\pi r^3$

$\frac{4}{3}\pi r^3=36$

$\pi r^3=27$

$r^3=8.594$

$r=2.048cm$

Now using 3.14 in place of $\pi$

Now volume of sphere is

$V=\frac{4}{3}\times 3.14\times 2.048^3$

$V=35.98cm^3$

Therefore volume of sphere when we use 3.14 in place of $\pi$ is $35.98cm^3$

And the Hal likely error is he uses $\pi$ directly for calculation of volume.

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