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Step-3

Title: Radius and daimeter of circle

Grade: 7-a Lesson: S1-L1

Explanation:

Step	Type	Explanation	Answer
1	Problem	The diameter of a circle is 110m. Find the radius. $3$
2	Formula:	Radius of a circle.	r = \$d/2\$
3	Step	Substitute 110 for d.	r =\$\frac{100}{2}\$
4	Step	Divide.	r = \$\cancel{110}^55/\cancel{2}^1\$ r = 55
5		Answer	The radius is 55m.

Step

Type

Explanation

Answer

Problem

The diameter of a circle is 110m. Find the radius.
$3$

Formula:

Radius of a circle.

r = \$d/2\$

Step

Substitute 110 for d.

r =\$\frac{100}{2}\$

Step

Divide.

r = \$\cancel{110}^55/\cancel{2}^1\$
r = 55

Answer

The radius is 55m.