Answer:
152°
Step-by-step explanation:
Intercepted arc is going to be two times the inscribed angle. We can see that angle A is subtended by arc BCD. (See attached picture.)
Step 1: Find angle A.
Angles in quadrilateral add up to 360°.
m∠A + m∠B + m∠C + m∠D = 360°
m∠A + 120° + 104° + 60° = 360°
m∠A + 284° = 360°
m∠A = 76°
Step 2: Find the measure of arc BCD.
Intercepted arc is going to be two times the inscribed angle.
measure of arc BCD = 2 × m∠A = 2 × 76° = 152°
Answer:
The distance between 12m-sides is .
Step-by-step explanation:
It is given that the parallelogram has sides 10m and 12m and an angle of 45°.
Draw an altitude from one 12m side to another 12 m side as shown in below figure.
The opposite angles of parallelogram are same. Two angles are obtuse angles and two are acute angle.
Since angle C is acute angle therefore it must be 45 degree.
Therefore the distance between 12m-sides is .
