Answer:
157.5°
Step-by-step explanation:
Total size of interior angles=(2n-4)90°
(2x16-4)90= 2520
size of one interior angle= (2n-4)90°/n
2520/16
Answer= 157.5°
NB n is the number of sides
Answer:
4√3
Step-by-step explanation:
The distance formula applies. It tells you ...
distance = √((x2 -x1)² +(y2 -y1)²)
Filling in the given values, you have ...
distance = √((-√32 -(-4√2))² +(2√3 -(-√12))²)
= √((-4√2+4√2)² +(2√3 +2√3)²)
= √(0 + (4√3)²)
distance = 4√3
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We make use of the fact that ...

3/5a = 1/4....multiply both sides by 5/3, cancelling out the 3/5 on the left
a = 1/4 * 5/3
a = 5/12