Question

cepting submissions until wednesday, september 10, 2025 at 3:25 pm

question 1 (1 point)
the diameter of a circle is 15 feet. what is its radius?
○ a 30 feet
● b 7.5 feet
○ c 15 feet
○ d 3.873 feet

question 2 (1 point)
the radius of a circle whose diameter is 11.5 cm is ______ cm.
blank 1:

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Explanation:

Question 1

Step1: Recall the relationship between diameter (d) and radius (r) of a circle. The formula is \( r=\frac{d}{2} \).

Given \( d = 15 \) feet.

Step2: Substitute the value of d into the formula.

\( r=\frac{15}{2}=7.5 \) feet.

Step1: Recall the formula for radius in terms of diameter: \( r=\frac{d}{2} \).

Given \( d = 11.5 \) cm.

Step2: Substitute d into the formula.

\( r=\frac{11.5}{2}=5.75 \) cm.

Answer:

b. 7.5 feet

Question 2