question What is the name of a polygon with nine sides

Math

What is the name of a polygon with nine sides?

A. Nonagon
B. Decagon
C. Octagon
D. Enneagon

A nonagon has nine sides.

If ℎ+9=15h+9=15, what is the value of ℎh?

A. 4
B. 5
C. 6
D. 7

The circumference of a circle is 18�18π units. What is its radius?

A. 3 units
B. 6 units
C. 9 units
D. 12 units

If 3�+4=193q+4=19, what is the value of �q?

A. 5
B. 6
C. 7
D. 8

If �×3=21k×3=21, what is the value of �k?

A. 5
B. 6
C. 7
D. 8

What is the area of a rectangle with a length of 15 units and a width of 8 units?

A. 80 square units
B. 100 square units
C. 120 square units
D. 150 square units

If a square has a diagonal of length 2222 units, what is the length of each side?

A. 11 unit
B. 22 units
C. 33 units
D. 44 units

If 2�−3=112m−3=11, what is the value of �m?

A. 5
B. 6
C. 7
D. 8

The perimeter of a rectangle is 30 units, and its length is 10 units. What is its width?

A. 5 units
B. 7 units
C. 8 units
D. 10 units

If the diameter of a circle is 14 units, what is its circumference?

A. 7�7π units
B. 14�14π units
C. 21�21π units
D. 28�28π units

If 2�−5=112s−5=11, what is the value of �s?

A. 6
B. 7
C. 8
D. 9