Question

a) How many elements are there in a triangle?
(a) 3 (b) 6 (c) 4 (d) None of these.
b) How many vertices does a triangle have?
(a) 1 (b) 2 (c) 3 (d) 4
c) If two sides of a triangle are equal, the triangle is called
(a) scalene (b) isosceles (c) equilateral (d) right-angled
d) How many medians can a triangle have?
(a) 1 (b) 2 (c) 3 (d) 4
e) How many altitudes can a triangle have?
(a) 1 (b) 2 (c) 3 (d) 4

Answer 1

Answer:

a.3

b.3

c. isosceles

d.3

e.3

Answer 2

Step-by-step explanation:

Correct option is

C

115∘

In Δ exterior angle is the sum of two opposite interior angles.

∠ABC+∠BAC=∠ACD

∠ACD=55+60

=115∘