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John is putting a fence around his garden that is shaped like a half circle and a rectangle

46 feet

Step-by-step explanation:

Perimeter of rectangle needed =

Half of the circumference of a circle needed =

Total perimeter needed =

46 ft

Step-by-step explanation:

John will need to put a fence along 3 sides of the rectangle: 14 ft, 7 ft, 14 ft

He also needs to put a fence along the half circle:

C (circumference) = 2×π×r = π×d

⇒C÷2 = π×d÷2 = 22/7×7÷2 = 22÷2 = 11 ft

Together: 14 + 7 + 14 + 11 = 46 ft

1. 1,440°

2. 144°

The sum of the interior angle measures of a regular decagon is 1,440 degrees.

The measure of each interior angle of a regular decagon is 144 degrees.