Two similar triangles will always have ________angles

(a)

acute

(b)

obtuse

(c)

right

(d)

matching

If in triangles PQR and XYZ, \(\frac{PQ}{XY}=\frac{QR}{ZX}\) then they will be similar if

(a)

∠Q = ∠Y

(b)

∠P = ∠X

(c)

∠Q = ∠X

(d)

∠P ≡ ∠Z

A flag pole 15 m high casts a shadow of 3 m at 10 a.m. The shadow cast by a building at the same time is 18.6 m. The height of the building is

(a)

90 m

(b)

91 m

(c)

92 m

(d)

93 m

If ΔABC～ΔPQR in which ∠A = 53^o and ∠Q = 77^o, then R is

(a)

50°

(b)

50°

(c)

70°

(d)

80°

In the figure, which of the following statements is true?

(a)

AB = BD

(b)

BD < CD

(c)

AC = CD

(d)

BC = CD