Question

Pls solve #4. very important

Answer 1

Answer:

Q2

• ΔABC~ΔDEC

Ratios of corresponding sides are equal:

• DE/AB = DC/AC
• DE/40 = 15/(15 +9)
• DE = 40*15/24
• DE = 25

Q3

• ΔABD~ΔBCD

Ratios:

• AD/BD = BD/DC
• AD*DC = BD²
• 16*(20 - 16) = BD²
• 64 = BD²
• 8 = BD

Q4

If ΔABC ~ ΔXYZ, the ratios below should be equal:

• AC/XZ = BC/YZ
• 10/15 = 18/24
• 2/3 = 3/4

Ratios are different so the triangles are not similar