I think the word you're looking for is congruent. Congruent angles always have the same angles.
Answer:
5.7%
Step-by-step explanation:
421-367=24
24/421x100=5.7%
4 5/6 would be your answer then you figure out how to take away the whole number
Answer:
No
Step-by-step explanation:
The sum of the digits is 40 which is not divisible by 9, so it is not divisible by 9
Answer:
There are 7 sides.
Step-by-step explanation:
Let's Use the formula that states that the sum of the angles of an n-sided polygon is given by.
S=(n−2)180
Since we are given that the two angles are right, the angles and each of the remaining angles is 144.
And Therefore, the sum is:
S=90
(n−2)144
(n−2)180
=90
+90
+(n−2)144
⇒(n−2)180
−(n−2)144
=180
⇒(n−2)(180
−144
)=180
⇒(n−2)(36
=180
⇒n−2=
36
180
⇒n−2=5
⇒n=5+2=7
Hence, the polygon has 7 sides.
