In Figure AB = BC and AD = BD = DC. The number of isoscles triangles in the figure is
(A) 1
(B) 2
(C) 3
A
(D) 4
D
B
C
In Figure ∠BAC = 90° and AD ⊥ BC. The number of right triangles in the figure is
(A) 1
(B) 2
(C) 3
A
(D) 4
B
In Figure
D
PQ ⊥ RQ, PQ = 5 cm and QR = 5 cm. Then ∆ PQR is
(A) a right triangle but not isosceles
(B) an isosceles right triangle
P
5
(C) isosceles but not a right triangle
(D) neither isosceles nor right triangle
Q
5
R
In Figure points A, B, C, D and E are collinear such that AB = BC = CD = DE. Then
(a)
BD
AD = AB + _____________
(b)
CD
AD = AC + _____________
(c)
C
mid point of AE is ___________
(d)
D
mid point of CE is ___________
(e)
4
AE = _________
× AB.
In Figure
(a)
Right angle
∠AOD is a/an ____________
(b)
acute angle
∠COA is a/an ____________
(c)
obtuse angle
∠AOE is a/an ____________
5,
The number of triangles in Figure is ______.
∆ AOB, ∆ AOC, ∆ ACD, ∆ COD, ∆ ABC
Their names are __________________________________________________.
Four
The number of straight angles in Figure is ______.
The number of common points in the two angles marked in
Figure is ______.
Two,
B
D
E P
A
Q
F
C
C