Question

3 3) In the Ag. m Care Ape) =110° then find
measure
of ∆ABC
a) 55°b) 110°s) 50°
d) 60°
​

Answer 1

Answer:

In a △ABC, by angle sum property, sum of angles of a triangle is 180

∘

∴∠ABC+∠BCA+∠CAB=180

∘

Given : ∠A=∠CAB=55

∘

and ∠B=∠ABC=40

∘

.

∴55

∘

+40

∘

+∠BCA=180

∘

∴∠BCA=180

∘

−95

∘

=85

∘

.

Therefore, ∠BCA=∠C=85

o

.