Step-by-step explanation:
Question 1:
Triangles EFG and JKL are similar.
Therefore GE/LJ = EF/JK.
=> 35/7 = ?/13, ? = 65.
Question 2:
Triangles PQR and JKR are similar.
Therefore QR/KR = PR/JR.
=> 169/65 = ?/65, ? = 169.
Question 3:
By Side-Splitter Theorem,
RE/RD = RT/RS.
=> 50/60 = 70/?, ? = 84.
Question 4:
By Side-Splitter Theorem,
KC/KB = KM/KL.
=> ?/65 = 121/143, ? = 55.
The answers are 65, 169, 84 and 55 respectively.
