Solving for unknown angles using equations
Real world area problems
Find the missing angle
Mathematical area problems
angles
100

x + 4x=90

Solve for x


x=18

100

1/2 x 10 units x 7.5 units

37.5 units2

100

25 + (90) + 40 + m= 180

m=25

100

7ft x 5ft

35ft

100

its a supplementary angle and there are two measurements, 179 and x. What is X

x = 1
200

2x + 6x + 90= 170

solve for x

x=10

200

6(1/2 x 6 units x 5.2 units)

93.6 units2

200

50 + 90+ n= 180

n=40

200

4ft x 6ft + 2ft x 6ft

36ft

200

if all sides of a 6 sided die are equal and the total area is 120 what is the size of one of the sides.

20

300

2y + 12 + 15 + 90= 180

solve for y

y=31.5
300

2(18 ft x 8 ft)

288 ft2

300

m + 52=90

m=38

300

5ft x 3ft + 2ft x 5ft

25ft

300

If the two angles on the triangle are 73.3 and 42.8 what is the remaining angle

63.9

400

2x + 36.5 + 36.5 + 2x + 3x=360

solve for x 

x=41

400

(20 units x 18 units) - 140 units

220 units2

400

40 + 52 + (38) + n=180

n=50

400

5ft x 5ft+ 5ft x 3ft+ 3ft x 5ft+ 3ft x 3ft

64

400

if a supplementary angle has 3 angles, 4x and 60 and 20 what is x

25

500

x + (x+1) + (x+2) + (x+3) + (x+4)=360

solve for x

x=70

500

12 units2 + 26 units+ 33 units2 + 43 units2

114 units2

500

m + 62 + (28) + 27= 180

m=63

500

ab x a + b x ab.

a2+ab +b2 + ab

500

Name 5 types of angles

Angle on a point, adjacent angles, Angles on a line, complementary angles, supplementary angles