question What is the name of a polygon with five sides

Math

What is the name of a polygon with five sides?

A. Pentagon
B. Hexagon
C. Heptagon
D. Octagon

A pentagon has five sides.

Solve: 2×(�+4)=202×(x+4)=20

A. �=6x=6
B. �=8x=8
C. �=10x=10
D. �=12x=12

What is the area of a circle with a radius of 9 units?

A. 18�18π square units
B. 27�27π square units
C. 36�36π square units
D. 81�81π square units

The area of a rectangle is 24 square units, and its length is 6 units. What is its width?

A. 2 units
B. 3 units
C. 4 units
D. 5 units

The sum of four consecutive integers is 34. What are the integers?

A. 7, 8, 9, 10
B. 8, 9, 10, 11
C. 9, 10, 11, 12
D. 10, 11, 12, 13

If 2552 of a number is 18, what is the number?

A. 25
B. 35
C. 40
D. 45

Solve: 2�+5=152x+5=15

A. �=5x=5
B. �=7x=7
C. �=8x=8
D. �=10x=10

What is the measure of each interior angle in a regular hexagon?

A. 90∘90∘
B. 120∘120∘
C. 135∘135∘
D. 140∘140∘

Solve: 23+1432+41

A. 5665
B. 11121211
C. 712127
D. 1221

If 4�−3�=74a−3b=7 and �+�=5a+b=5, what are the values of �a and �b?

A. �=2,�=3a=2,b=3
B. �=3,�=2a=3,b=2
C. �=4,�=1a=4,b=1
D. �=1,�=4a=1,b=4

The area of a circle is 64π square units. What is its radius?

A. 4 units
B. 6 units
C. 8 units
D. 10 units