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Zinaida [17]
3 years ago
6

Heron’s formula: Area = square root 5(5-a)(5-b)(5-c) What is the area of triangle DFG? Round to the nearest whole square unit. 2

7 square units 38 square units 364 square units 728 square units
Mathematics
2 answers:
timurjin [86]3 years ago
3 0
To do this problem, you will need to know the side lengths of the triangle. If you have those, just plug them in for a, b, and c and evaluate the square root.

Here is an example. If the sides are 3, 4, 5.
It would be:

A= \sqrt{6(6-3)(6-4)(6-5))}

The 6 is in the formula because it is the semi-perimeter (half).
Marizza181 [45]3 years ago
3 0
The formula of Heron is given by:
\sqrt{S(s-a)(s-b)(s-c)}=A where s is given by (a+b+c)/2 and A is the area. Here, we have a=11, b=9, c=6. Hence, s=13. Substituting, we get that
A=\sqrt{13*7*4*2}. Thus A^2=728 and A=26.98. This yields that A=27 given the exercise options.
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All the names for the mathematical statement given as pi over 2 are π/2 rad and 90 degrees

<h3>How to determine all the names for pi over 2?</h3>

The mathematical statement is given as:

All names for pi over 2

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All names for pi/2

This can further be rewritten as:

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