Question

Does anyone know how to do this ???

Answer 1

• 8) x = 6.5, 9) x = 7, 10) x = 13

Explanation:

We have similar figures given.

The ratio of corresponding sides of similar figures is same as per definition of similarity.

Use this property and solve each question.

Question 8

• HG/DC = FG/BC

• x/13 = 13/26
• x/13 = 1/2
• x = 13/2
• x = 6.5

Question 9

• WY/SU = YX/UT

• 4/(x + 5) = 3/9
• 4/(x + 5) = 1/3
• x + 5 = 4*3
• x + 5 = 12
• x = 7

Question 10

Considering x is positive, PS and MN are longer legs of right triangles.

• PS/MN = ST/ML

• (x + 2)/10 = (x - 1)/8
• 10(x - 1) = 8(x + 2)
• 10x - 10 = 8x + 16
• 10x - 8x = 16 + 10
• 2x = 26
• x = 13