Answer:
Answer is 154
Step-by-step explanation:
Answer:
a quadrilateral is a polygon with 4 sides and for corners
Step-by-step explanation:
A composite number has more than two factors.
(B) 21 is a composite number because the factors of 21 are 7 × 3.
35 is the answer
Explanation, the sum of interrior angme is 180degree
x+(3x+40)= 180
or, 4x= 180-40
or, x= 140÷ 4
or x = 35