Answer:
a = 49°
Explanation:
You use the rule ‘exterior angle of a triangle’ which states that the exterior angle is equal to the sum of the two opposite interior angles.
To put it mathematically:
a + a = a + 49° (Ext angles of triangle)
a = a - a + 49°
a = 49°
Answer:
when x=4
the value of x(14 - x)=4(14-4)=4×10=40
8/9 = x + 1/3 (7)
8/9 = x + 7/3
8/9 - 7/3 = x
x = 8/9 - 21/3
x = -13/3
x = -4 and 1/3
Answer: -4 and 1/3