Answer:
98
Step-by-step explanation:
all interior angles add up to 180 so the third angle is53+45=98 so 180-98=82
X=180-82whiCh is 98
<span>a = 1/2 x b x h
h = 3b
so 1/2 x b x 3b = (1/2)(3b^2) = 150
(150 x 2)/3 = b^2
100 = b^2
b = square root of 100 = 10
h = 3b = 3 x 10 = 30</span>
Sub g to (-3) and then solve from there using PMDAS and equation solving skills, Photomath is a fantastic resource
