cdraytonn
05.05.2021 •
Mathematics
2) given ABC≈DEF, answer questions A and B
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Ответ:
If ABC and DEF are similar triangles such that ∠A = 47° and ∠E = 63°, then the measures of ∠C = 70°. Is it true? Give reason. ∴ Given statement is true. Question 3. Let ∆ABC ~ ∆DEF and their areas be respectively 64 cm 2 and 121 cm 2. If EF = 15.4 cm, find BC. Question 4. ABC is an isosceles triangle right-angled at C. Prove that AB 2 = 2AC 2.
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