2 years ago

The diameter of a circle is 4 cm. Which equation can be used to find its circumference?

Mathematics

2 answers:

Romashka-Z-Leto [24]2 years ago

7 0

Pi times 4 is the answer because C=pi * d

Leya [2.2K]2 years ago

5 0

Answer:

pi times 4

Step-by-step explanation:

Circumference: pi times diameter (pi)(d) or pi times 2 times the radius (pi)(2r)

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2 years ago

ABCD diagonals intersect at E. If m∠BAC=4x+5 and m∠CAD=5x-14, then find m∠CAD.

Travka [436]

Answer: m∠CAD = 81°

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The figure below shows ABCD with its diagonals.

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