Question

Q. 15) In the following figure,
the side BC of A ABC is
extended up to the point D. If
ZA = 55° and B = 60°, then
the measure of ZACD is *
55
60°
B
с
D​

Answer 1

Answer:

Step-by-step explanation:

∠ACD=120d

∠ABC∠CAB=12units

∴∠ACB=180∘−120∘

∠ACB=60∘

As we know that

∠A+∠B+∠C=180∘

∠A+B=180∘−60∘

∠A+∠B=120∘

3 units=120∘

1 unit=40∘

∠ABC=1×40∘=40∘

∠CAB=2×40∘=80∘

∴∠ABC=40∘

Answer 2

Answer:

ZACD is a 55

Step-by-step explanation:

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