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In triangle ABC, AD = BD = DC (see figure). What is x?
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02 Feb 2023, 04:27
02 Feb 2023, 04:27
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In triangle ABC, AD = BD = DC (see figure). What is x?
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Re: In triangle ABC, AD = BD = DC (see figure). What is x?
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18 Feb 2023, 06:21
18 Feb 2023, 06:21
1
Expert Reply
OE
If AD = BD = DC, then the three triangular regions in this figure are all isosceles triangles. Therefore, you can fill in some of the missing angle measurements as shown here. Because you know that there are 180° in the large triangle ABC, you can write the following equation:
x+x+20+20+60+60=180
x=10
If AD = BD = DC, then the three triangular regions in this figure are all isosceles triangles. Therefore, you can fill in some of the missing angle measurements as shown here. Because you know that there are 180° in the large triangle ABC, you can write the following equation:
x+x+20+20+60+60=180
x=10
Re: In triangle ABC, AD = BD = DC (see figure). What is x?
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18 Jun 2024, 16:35
18 Jun 2024, 16:35
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