Mathematics, 30.03.2022 21:50, joydivision01
Look at the right triangle ABC:
Right triangle ABC has a right angle at B. Segment BD meets segment AC at a right angle.
A student made the following chart to prove that AB2 + BC2 = AC2:
Statement Justification
1. Triangle ABC is similar to triangle BDC 1. Angle ABC = Angle BDC and Angle BCA = Angle BCD
2. BC2 = AC β
DC 2. BC Γ· DC = AC Γ· BC because triangle ABC is similar to triangle BDC
3. Triangle ABC is similar to triangle ABD 3. Angle ABC = Angle BAD and Angle BAC = Angle ABD
4. AB2 = AC β
AD 4. AB Γ· AD = AC Γ· AB because triangle ABC is similar to triangle ADB
5. AB2 + BC2 = AC β
AD + AC β’ DC = AC (AD + DC) 5. Adding Statement 1 and Statement 2
6. AB2 + BC2 = AC2 6. AD + DC = AC
Which justification is incorrect?
Justification 4
Justification 1
Justification 2
Justification 3
Answers: 1
Mathematics, 21.06.2019 15:00, yyyyyyyyy8938
Sienna planned a trapezoid-shaped garden, as shown in the drawing below. she decides to change the length of the top of the trapezoid-shaped garden from 32 ft to 24 ft. which expression finds the change in the scale factor?
Answers: 1
Mathematics, 21.06.2019 23:00, noahdwilke
36x2 + 49y2 = 1,764 the foci are located at: (-β13, 0) and (β13,0) (0, -β13) and (0,β13) (-1, 0) and (1, 0)edit: the answer is (- the square root of 13, 0) and (the square root of 13, 0)
Answers: 1
Look at the right triangle ABC:
Right triangle ABC has a right angle at B. Segment BD meets segmen...
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