Answer:
answer is 3 1/2
Step-by-step explanation:
The circumference of the circle E is :
C = 2 r π
C = 2 * 40 π = 80 π cm.
Also 324° / 360° = 0.9
m Arc (ABC ) = 0.9 * 80 π = 72 π cm
There is also formula for calculating the measure of an arc:
m Arc = r π α / 180°
m Arc = 40 π * 324 / 180 = 40π * 1.8 = 72 π
Now we have to find the exact length ( π ≈ 3.14 )
m Arc ( ABC ) = 72 * 3.14 = 226.08 cm
Answer:
132mm
Step-by-step explanation:
all triangles= 96
formula= bh.5=sa
work= 6 x 8 = 48 x .5 = 24 24x4=96
Square= 36
formula= bh = sa
work= 6 x 6 = 36
Adding= 36 + 96 = 132
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