Finding Angles and Sides of Polygons

If three angles of a quadrilateral are each equal to 75°, then, the fourth angle is

• (a) 150°

• (b) 135°

• (c) 45°

• (d) 75°

Tags

CCSS.HSG.C.A.3

What is the sum of all the angles of a pentagon?

• 180°

• 360°

• 540°

• 720°

If two adjacent angles of a parallelogram are (5x – 5) and (10x + 35), then the ratio of these angles is

• (a) 1 : 3

• (b) 2 : 3

• (c) 1 : 4

• (d) 1 : 2

Tags

CCSS.HSG.CO.C.11

The measure of each interior angle of a rectangular polygon of 12 sides is ?

• 123 degree

• 125 degree

• 150 degree

• 175 degree

step 1: set up an equation

step 2: Solve for x

step 3: Plug in x for each expression

step 4: Add the two answers from step 3

• 82

• 41

• 17

• 90

Tags

CCSS.HSG.CO.C.11

step 1: set up an equation

step 2: Solve for x

step 3: Plug in x for each expression

step 4: Add the two answers from step 3

• 82

• 41

• 17

• 90

Tags

CCSS.HSG.CO.C.11

Name the angles from SMALLEST to LARGEST

• Q, R, P

• P, Q, R

• R, P, Q

• R, Q, P

Tags

CCSS.HSG.CO.C.10

Name the sides from SMALLEST to LARGEST

• RS, ST, TR

• ST, RT, RS

• RT, ST, RS

• RT, RS, ST

Tags

CCSS.HSG.CO.C.10

Find the largest angle in Δ PRQ

• ∠R

• ∠P

• ∠Q

• ∠S

Tags

CCSS.HSG.CO.C.10

• Not enough information

Tags

CCSS.8.G.A.5