Basic Proportionality Theorem Lessons

If two figures are similar, the corresponding sides are ______________.

• equal
• congruent
• proportional
• none of these

In similar Polygons, corresponding sides are ___ and corresponding angles are ___. (Fill in the blanks)

• congruent, proportional 
• proportional, congruent 
• congruent, congruent
• proportional, proportional

Which of the following is NOT true about similar figures?

• A) Similar figures always have the same shape.
• B) Similar figures always have the same size.
• C) Similar figures always have corresponding angles that are equal.
• D) Similar figures always have corresponding sides that are proportional.

E and F are points on the sides PQ and PR

respectively of a Δ PQR. If PE = 4 cm, QE = 4.5 cm, PF = 8 cm and RF = 9 cm, then EF || QR.

• True

• False

Basic proportionality theorem is known as

• Pythagoras theorem

• Area theorem

• none of the above

• Thale's theorem

If a line divides any two sides of a triangle in the same ratio then the line is ----------- to the third side

• parallel

• perpendicular

• co-incides

• none of the above

in the fig, if DE ll BC then find the value of AD

• 16

• 8

• 4

• 32

In the fig, DE ll BC. find the value of EC

• 4

• 18

• 12

• 16

Name a segment parallel to segment AC

• segment DE
• segment DB
• segment AC
• segment BC

Find the value of x

• 20

• 4

• 24

• 36