∆ABC ~ ∆PQR, M is the mid-point of BC and N is the

mid point of QR. If the area of ∆ABC = 100 sq. cm,

the area of ∆PQR = 144 sq. cm and AM = 4 cm,

then PN is :

A) 4.8 cm

B) 12 cm

C) 4 cm

D) 5.6 cm

ΔABC is an isosceles triangle in which ∠C = 90°. If AC =6 cm, AB=?

A) \(6 \sqrt{2}\) cm

B) 6 cm

C) \(2 \sqrt{6}\) cm

D) \(4 \sqrt{2}\) cm

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.

Basic proportionality theorem is known as

A) Pythagoras theorem

B) Area theorem

C) none of the above

D) Thale’s theorem