Answer:
x = 26
Step-by-step explanation:
it is a right angle so
(x+4)3=90
3x+12=90
-12 -12
3x = 90-12
3x = 78
/3 /3
yes this is true.
Supplementary angles always add up to 180°.
V= l x b x h
= 9cm x 6cm x 12cm
=648
200
good luck :)
y=-2x
