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OLEGan [10]
3 years ago
7

find the percentage decrease in the area of triangle if each of its side is halved. (by using heron\'s formula)

Mathematics
1 answer:
cricket20 [7]3 years ago
3 0
Lets say that you had a triangle that had an area of 64, each side being 4 (4X4X4=64) then you cut each side in half 2X2X2 the percentage decrease  would be 87%
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Copy the problems onto your paper, mark the givens and prove the statements asked.
natulia [17]

The statements and reasons for the proof are:

  1. CN ≅ WN [given]
  2. ∠C ≅ ∠W [given]
  3. m∠CNR ≅ ∠WNO [vertical angles theorem]
  4. ΔCNR ≅ ΔWNO [ASA theorem]
  5. RN = ON [CPCTC]

<h3>What is the CPCTC and ASA Congruence Theorem?</h3>

When two triangles have two corresponding congruent angles and one corresponding included sides that are congruent, both triangles are congruent by ASA. By implication, the CPCTC states that since they are congruent triangles, all its corresponding parts are congruent to each other.

The statement for the proof along with the reasons in bracket are:

  1. CN ≅ WN [given]
  2. ∠C ≅ ∠W [given]
  3. m∠CNR ≅ ∠WNO [vertical angles theorem]
  4. ΔCNR ≅ ΔWNO [ASA theorem]
  5. RN = ON [CPCTC]

Learn more about the CPCTC theorem on:

brainly.com/question/14706064

#SPJ1

8 0
2 years ago
Which expression is equivalent to sqr 400i8j4k6
Gelneren [198K]

I have attached the correct answer. Brainliest will be much appreciated!

4 0
4 years ago
Use the 45-45-45-90 triangle relationship to find the missing sides
muminat

Answer: A is 8. B is the square root of 128.

Step-by-step explanation: Nah.

7 0
3 years ago
A Five Year Old Boy Weighed 30 kg at his appointment. how many pounds does the patient weight?
kirill [66]
1.) Convert 30 kg into pounds

30 kg = 66 lb

2.) A five-year-old boy weighed 66 pounds at his appointment.
3 0
3 years ago
Read 2 more answers
HELP
ArbitrLikvidat [17]

Answer:

Esmerelda did not use the reciprocal of the divisor.

Step-by-step explanation:

A complex fraction is another way to show division of two fractions.  In this case, we are dividing -5 1/4 by 3/2.

We first convert -5 1/4 to an improper fraction.  To do this, multiply the whole number by the denominator; this gives us -5(4) = -20.  Then add the -1 (negative since the fraction is negative); this gives us -21/4.

This means we are dividing -21/4 by 3/2.

To divide fractions, we multiply by the reciprocal; this means we flip the second fraction and multiply.  We would then multiply -21/4 by 2/3.  This is the step Esmerelda did not do.

3 0
4 years ago
Read 2 more answers
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