We know that the interior angle sum of a polygon is (n − 2) × 180°, where <em>n</em> is the number of sides.
Here, number of sides (n) = 12
So, interior angle sum = (n − 2) × 180°
=> interior angle sum = (12 - 2) × 180°
=> interior angle sum = 10 × 180°
=> interior angle sum = 1800°
So, the interior angle sum of this polygon is 1800°.
Step-by-step explanation:
p=3T
when T=10
p=3×10
p=30
Answer:
The width measures 2.5 cm
Step-by-step explanation:
Area of triangle = Area of rectangle
1/2 bh = wh
1/2(5)(6) = w(6)
1/2(30) = 6w
15 = 6w
15 ÷ 6 = w
2.5 = w
Table a seems the most likely to be correct
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