Question

For triangle ABC, find the measure of angle ACD.
A=66°
B= 45° Find angle ACD​

Answer 1

Answer:

the answer is 69°

Step-by-step explanation:

let the 3rd angle be x

therefore a+b+c=180

66+45+x=180

111+x=180

x=180-111

x=69.ans

Answer 2

Answer:

•Given:-

A = 66°

B = 45°

A + B + ACB = 180° [sum of angles = 180°]

ACB = 180 - 111

ACB = 69

ACB + ACD = 180 [ straight angles]

69 + ACD = 180

ACD = 180 - 69

ACD = 111°

$\huge \green{ \boxed{ 111°}}$