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daser333 [38]
3 years ago
15

If A = (8, 2) B = (11, 13) and C = (2, 6), classify the the following triangle as either right or isosceles

Mathematics
2 answers:
frez [133]3 years ago
5 0
The following triangle is isosceles.

pantera1 [17]3 years ago
3 0

Answer:

the triangle ABC of the figure is an isosceles triangle

Step-by-step explanation:

we have

A(8,2),B(11,13),C(2,6)        

Using a graphing tool

Plot the triangle

see the attached figure

The triangle in the figure is not a right triangle ------> Is an acute triangle

Verify if the triangle ABC is an isosceles triangle

we know that

An isosceles triangle has two equal sides and two equal angles

Verify if AB=BC

Remember that

the formula to calculate the distance between two points is equal to

d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}

Find the distance AB

we have

A(8,2),B(11,13)    

substitute in the formula

d=\sqrt{(13-2)^{2}+(11-8)^{2}}

d=\sqrt{(11)^{2}+(3)^{2}}

dAB=\sqrt{130}\ units

Find the distance BC

we have

B(11,13),C(2,6)      

substitute in the formula

d=\sqrt{(6-13)^{2}+(2-11)^{2}}

d=\sqrt{(-7)^{2}+(-9)^{2}}

dBC=\sqrt{130}\ units

therefore

AB=BC -------> the triangle ABC of the figure is an isosceles triangle

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