Unit 3 and 4 Review: Polygons, Circles, Area, Right triangles

Question 1

The sum of the interior angles of a heptagon is

Accepted Answer

900 degrees

Question 2

The 3 midsegments of a triangle divide it into

Accepted Answer

four congruent trianlges

Question 3

A tangent of a circle and the radius drawn to the point of tangency form a(n) __ ?___ angle.

Accepted Answer

right

Question 4

What is the surface area formula for a cylinder?

Accepted Answer

SA = 2πrh + 2πr2

Question 5

Angles inscribed in a semicircle are

Accepted Answer

right angles

Question 6

The measure of an inscribed angle is __?__ the measure of a central angle with the same arc.

Accepted Answer

one-half of

Question 7

What is the area formula for a regular polygon?

Accepted Answer

A = ½asn

Question 8

One formula for the circumference of a circle is __?__.

Accepted Answer

C = 2ỻr

Question 9

__?__ angles of a kite are __?__ by a __?___

Accepted Answer

vertex, bisected, diagonal

Question 10

The opposite angles of a parallelogram are

Accepted Answer

congruent angles

Question 11

Which of the number sets below is not a Pythagorean Triple?

Accepted Answer

50, 48, 15

Question 12

The opposite angles of a cyclic quadrilateral are __?__ angles.

Accepted Answer

supplementary

Question 13

Which of the following is an incorrect statement?

Accepted Answer

√50 = 25√2

Question 14

What is the difference between the area formulas for a rectangle and a triangle?

Accepted Answer

The triangle formula is ½ the rectangle formula.

Question 15

Arc length is the _?_ in the arc divided by 360o and multiplied by the circumference.

Accepted Answer

number of degrees

Question 16

In a 45-45 right triangle, the hypotenuse is 16 in. What is the length of the legs?

Accepted Answer

16÷√2 in. = 8√2in.

Question 17

The legs of a right triangle are 5cm and 12cm. What is the length of the hypotenuse?

Accepted Answer

13 cm

Question 18

Which 2 quadrilaterals have the same area formula?

Accepted Answer

rhombus and kite

Question 19

The measure of the angle formed by two intersecting chords is ½ of __?__.

Accepted Answer

the sum of the two intercepted arcs

Question 20

The sum of exterior angles of an octagon is

Accepted Answer

360 degrees

Question 21

One interior angle of a regular pentagon is

Accepted Answer

108 degrees

Question 22

The quadrilateral formed by two pairs of parallel segments the same distance apart is

Accepted Answer

a rhombus

Question 23

What is the surface area formula for a prism?

Accepted Answer

SA = 2wl + 2wh + 2lh

Question 24

In a 30-60 right triangle the hypotenuse is 20 in. What is the length of the longer leg?

Accepted Answer

10√3 in

Question 25

The measure of an angle formed by two intersecting tangents to a circle is ½ __?__

Accepted Answer

the difference of the two intercepted arcs

Unit 3 and 4 Review: Polygons, Circles, Area, Right triangles

Questions 25

Unit 3 and 4 Review: Polygons, Circles, Area, Right triangles

Questions 25