Triangles Class 10 Mcq Test (100601)

A 2.5m long ladder leans against the wall of a building. The base of the ladder is 1.5m away from the wall. What is the height of the wall?

A) 2 cm

B) 8 m

C) 2 m

D) 5 m

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

A) parallel

B) perpendicular

C) co-incides

D) none of the above

ΔABC and ΔPQR are similar triangles such that ∠A = 32° and ∠R = 65°, then ∠B is :

A) 83°

B) 32°

C) 65°

D) 97°

∆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

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

A) congruent, proportional

B) proportional, congruent

C) congruent, congruent

D) proportional, proportional

Basic proportionality theorem is known as

A) Pythagoras theorem

B) Area theorem

C) none of the above

D) Thale's theorem