You appear to have made an odd, albeit common arithmetical mistake: you seem to have done width x 1/length instead of width x length. The correct way to do this is:
5/12 x 5/6 = (5x5)/(12x6) = 25/72
Answer: 4
Step-by-step explanation:
Answer: x=12
Steps shown in image below:
Answer:
50degrees
Step-by-step explanation:
The sum of angle in the triangle XYZ is 180degrees, hence;
<X + <Y + <Z = 180
Given
m<X = 80degree
m<Y = m<Z
Required
m<Z
Substitute the given angle
80 + m<Z + m<Z = 180
80 + 2m<Z = 180
2m<Z = 180 - 80
2m<Z = 100
m<Z = 100/2
m<Z = 50degrees
Hence the measure of angle Z is 50degrees