Mathematics
Grade 9
15 min
Write and solve equations that represent diagrams
Write and solve equations that represent diagrams
Tutorial Preview
1
Two angles on a straight line are (2x)° and 60°. Find x.
2
A triangle has angles of x°, 70°, and 50°. Find x.
3
A rectangle has length (x+3) and width 2. Its perimeter is 20. Find x.
Sample Practice Questions
Easy
Two angles on a straight line are x° and 100°. Find x.
0.60
1.70
2.80
3.90
Easy
A triangle has angles 40°, 60°, and x°. Find x.
0.60
1.70
2.80
3.90
Easy
A rectangle has length 5 and width x. Its perimeter is 14. Find x.
0.1
1.2
2.3
3.4
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