Question

Alex and Heather each draw a triiangle with one side of 8cm, one angle of 45°and one angle of 80°. Alex says that their triangles are congruent. Explain why Alex might not be correct

208

likes
1040 views

Answer to a math question Alex and Heather each draw a triiangle with one side of 8cm, one angle of 45°and one angle of 80°. Alex says that their triangles are congruent. Explain why Alex might not be correct

Expert avatar
Bud
4.6
97 Answers
1. We know from the problem that there is a side of length 8\ \text{cm} and two angles: 45^\circ and 80^\circ.
2. The total sum of internal angles of a triangle is 180^\circ. Therefore, the remaining angle in each triangle is:
180^\circ - 45^\circ - 80^\circ = 55^\circ
3. This gives us a unique set of angles: 45^\circ, 80^\circ, 55^\circ in each triangle.
4. Since the corresponding angles in both triangles are equivalent, the triangles fall under the Angle-Angle-Angle (AAA) similarity criterion.
5. However, AAA similarity does not guarantee that the triangles are congruent. Congruence requires that the corresponding sides are congruent.
6. Because only one side of both triangles is given as 8\ \text{cm} and we have no information about the lengths of the other sides, the triangles might not be congruent.

Final Answer: The triangles are not necessarily congruent.

Frequently asked questions (FAQs)
Question: Evaluate sinh(arccosh(5)) - cosh(arcsinh(2))
+
Question: Find the value of arcsin(cos(π/4)) - arccos(sin(π/6)) + arctan(tan(π/3)), where arcsin(x) denotes the inverse sine function.
+
Math question: Find all integer solutions (x, y, z) to the equation x^n + y^n = z^n, where n > 2, satisfying Fermat's Last Theorem.
+
New questions in Mathematics
The director of a company must transfer 6 people from the human resources department to the sales department, in order to sustain sales during the month of December. What is the probability that he will transfer only 2 of them?
2x-4y=-6; -4y+4y=-8
A soft drink machine outputs a mean of 23 ounces per cup. The machines output is normally distributed with a standard deviation of 3 ounces. What is the probability of filling a cup between 26 and 28 ounces round your answer to four decimal places
A job takes 9 workers 92 hours to finish. How many hours would it take 5 workers to complete the same job?
A test has 5 multiple choice questions. Each question has 4 alternatives, only one of which is correct. A student who did not study for the test randomly chooses one alternative for each question.(a) What is the probability of him getting a zero on the test?(b) What is the probability of him getting a three or more? The maximum mark for the test is 5, with each question worth one point.
In the telephone exchange of a certain university, calls come in at a rate of 5 every 2 minutes. Assuming a Poisson distribution, the average number of calls per second is: a) 1/8 b) 1/12 c) 1/10 d) 2/5 e) 1/24
Use linear approximation to estimate the value of the sine of 31o.
X³-27
Quadratic equation 2X = 15/X + 7
A contractor gives a bank note for $10250 at a rate of 1% for one month. How much interest is charged for 4 months?
factor the polynomial completely over the set of complex numbers b(x)=x^4-2x^3-17x^2+4x+30
Let N be the total number of ways to choose at least one ride, out of a total of 7 different ones, existing in an amusement park. Can it be said that N is a natural number equal to?
a) Statistics scores are normally distributed with the mean of 75 and standard deviation of 7. What is the probability that a student scores between 80 and 88
Oi👋🏻 Toque em "Criar Nova Tarefa" para enviar seu problema de matemática. Um dos nossos especialistas começará a trabalhar nisso imediatamente!
x²-7x+12=0
The following incoming payments show up at a tax inspection: 25 000€ on 19.01.2008, 140 000€ on 27.03.2008 and 19 000€ on a date that which is illegible, and 60 000€ on 15.06.2008. On which date did the payment of the 19 000€ appear, if on 30.06.2008 the money on the account (incl. interest at 4%) is 246 088.89€? Use simple interest and 30E/360 DCC. Solution: 45 days, 15.05.08
7-1=6 6x2=12 Explain that
A triangle is cut by a line s parallel to the base in such a way that it divides the side of the triangle into parts in the ratio of 2 : 3. Find the other side of the triangle if it is known that the line s divides it into parts whose length is 5 cm.
Mark is gluing a ribbon around the sides of a picture frame. The frame is 11 inches long and 7 includes wide. How much ribbon does Mark need?
13/25+7/16