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mixer [17]
3 years ago
14

An isosceles triangle has an angle that measures 40 degrees. Which other angles could be in that isosceles triangle? Choose all

that apply
• 70
• 40
• 100
• 20
Mathematics
2 answers:
Alik [6]3 years ago
6 0

Answer:

70, 40, and 100

Step-by-step explanation:

I am taking the IXL and wanted to know what t was and i got it wrong because someone answered it was only 70 and 100 when it is actually 40 100, and 70. Trust me i just got it wrong and IXL gave me the right answers.

nikklg [1K]3 years ago
4 0

An isosceles triangle has an angle that measures 40 degrees. 70 and 100 are other angles could be in that isosceles triangle

<u>Solution:</u>

Given that isosceles triangle has an angle that measures 40 degrees.

If a triangle is isosceles then it has 2 identical angles and the third different one.

Let the two identical angles be "a"

We know that sum of angles in a triangle is 180 degree

a + a+ 40 = 180

2a + 40 = 180

2a = 180-40

a = 70

Thus the two identical angles are 70 degree and 70 degree

Now let the identical two angles be "40" and the third angle be "a"

Now sum of angles = 180 degree

40 + 40 + a = 180

80 + a = 180

a = 100

Thus the third angle in this case is 100

70 and 100 are other angles could be in that isosceles triangle

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