Answer:
A picture would be needed to solve this
Step-by-step explanation:
Formula for area of a triangle:
Height x Base /2
Base (b) = h +4
Height = h
h + 4 x h /2 = 30cm
=> h +4 x h = 60
=> h+4h =60
=> 5h = 60
=> h = 12
Height = 12
Base = 12 +4 = 16
60
45 x 60/45 = 2700/45
2700/45 = 60
1)
x = -45
2)
